a manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 408 gram setting. it is believed that the machine is underfilling or overfilling the bags. a 13 bag sample had a mean of 399 grams with a variance of 121 . assume the population is normally distributed. is there sufficient evidence at the 0.02 level that the bags are underfilled or overfilled?

Answers

Answer 1

After the test statistic we find that the critical t-value is 2.681. Since the absolute value of the test statistic (-2.78) is greater than the critical t-value (2.681), we can reject the null hypothesis.

The test statistic can be calculated as follows:
t = (399 - 408) / (sqrt(121/13)) = -2.78  Since the absolute value of the test statistic (-2.78) is greater than the critical t-value (2.681), we can reject the null hypothesis.

To answer your question, we will conduct a hypothesis test to determine if there is sufficient evidence at the 0.02 significance level that the bags are underfilled or overfilled.

Step 1: State the hypotheses
H0 (null hypothesis): The population means (μ) is 408 grams.
H1 (alternative hypothesis): The population means (μ) is not equal to 408 grams.

Step 2: Determine the test statistic
Since we know the population variance, we will use a z-test. The formula for the z-test statistic is:

z = (sample mean - population mean) / (population standard deviation/sqrt (sample size))

z = (399 - 408) / (sqrt(121) / sqrt(13))

Step 3: Calculate the z-value
z = (-9) / (11 / sqrt(13))
z ≈ -2.58

Step 4: Determine the critical value
For a two-tailed test at the 0.02 significance level, we need to find the critical value. Using a z-table, we find the critical values are approximately -2.33 and +2.33.

Step 5: Compare the z-value to the critical values
Our calculated z-value (-2.58) is less than the lower critical value (-2.33).

Step 6: Draw a conclusion
Since our z-value falls in the rejection region, we reject the null hypothesis. There is sufficient evidence at the 0.02 significance level to conclude that the chocolate chip bag-filling machine is either underfilling or overfilling the bags when set to 408 grams, assuming the population is normally distributed.

Learn more about Test Statistic:

brainly.com/question/14128303

#SPJ11


Related Questions

what line passes through (8,2) and is parallel to y= 1/2x +1

Answers

The equation of the line is y = 1/2x - 2

Calculating the equation of the line

From the question, we have the following parameters that can be used in our computation:

y= 1/2x +1

Point = (8, 2)

Parallel lines have equal slopes

This means that the slope of the line is 1/2

So, the eqiuation is calculated as

y = m(x - x1) + y1

substitute the known values in the above equation, so, we have the following representation

y = 1/2(x - 8) + 2

Evaluate

y = 1/2x - 2

Hence, the equation is y = 1/2x - 2

Read more about linear eqation at

https://brainly.com/question/30318449

#SPJ1

Cos (90°-0) / sin (180°- 0) - sin^2 (-0)

Answers

The answer to the mathematical expression of Cos (90°-0) / sin (180°- 0) - sin^2 (-0) is:

= -1

How to calculate the expression

To calculate the expression, we can begin by determining the values and subtracting or dividing as is the case. First, we begin by determining the values as follows:

Cos 90° = 0

Cos 0 = 1

Sin 180° = 0

Sin -0 = 0

Now we express the values as follows:

Cos (90°-0) / sin (180°- 0) - sin^2 (-0)

0 - 1/0 - 0

= -1

So, the answer obtained from resolving this expression is -1.

Learn more about sine and cosine here:

https://brainly.com/question/1326893

#SPJ1

Eric owns and operates the Hot Ham food truck. The expression
3.25

+
2

3.25b+2h3, point, 25, b, plus, 2, h gives the cost of

bb burgers and

hh hot dogs.
What is the cost of
4
44 burgers and
6
66 hot dogs?

Answers

The cost of 4 burgers and 6 hot dogs is $25.

We are given that;

Expression= 3.25+2ℎ

Number of burgers=444

Number of hot dogs= 666

Now,

To find the cost of 4 burgers and 6 hot dogs, we need to substitute b = 4 and h = 6 in the expression 3.25b+2h. We get:

3.25(4)+2(6)

Using the order of operations, we first multiply 3.25 by 4 and 2 by 6. We get:

13+12

Then we add 13 and 12. We get:

25

Therefore, by the given expression the answer will be $25.

To know more about an expression follow;

brainly.com/question/19876186

#SPJ1

In ΔLMN, l = 6.9 cm, m = 8.1 cm and n=8.8 cm. Find the measure of ∠N to the nearest 10th of a degree.

Answers

In triangle LMN, l = 6.9 cm, m = 8.1 cm and n=8.8 cm then the  measure of ∠N is 71.3 degrees

The equation to set up for this, following the pattern for the Law of Cosines, is as follows:

From triangle LMN

n² = m² + l² - 2 mlcos N

We have to find the measure of ∠N

8.82 = 8.12 + 6.92 - 2( 8.1)(6.9) cos N

77.44 = 113.22 - 111.78 cos N

Subtract 113.22 on both sides

-35.78 = -111.78 cos N.

Divide both sides by 111.78

cos N = 0.32

N=Cos⁻¹(0.32)

N=71.3 degrees

Hence, in triangle LMN, l = 6.9 cm, m = 8.1 cm and n=8.8 cm then the  measure of ∠N is 71.3 degrees

To learn more on trigonometry click:

https://brainly.com/question/25122835

#SPJ1

B
Problem Solving
HABITS
measure of
Be Precise Describe the rays of an angle that has a measure of 1/2 turn

Answers

The rays of the angle from the measure 1/2 turn is 180 degrees

Describing the rays of the angle from the measure

From the question, we have the following parameters that can be used in our computation:

Angle measure = 1/2 turn

By definition, rays have two endpoints where they extend indefinitely on  one of the endpoints

As a general rule, we have

a full turn = a full circle = 360°half a turn = 180°

Substitute the known values in the above equation, so, we have the following representation

Angle measure = 1/2 * 360

Evaluate

Angle measure = 180

Hence, the angle measure is 180 degrees

Read more about angle at

https://brainly.com/question/25716982

#SPJ1

find the area of the parallelogram with vertices a(−4, 2), b(−2, 5), c(2, 3), and d(0, 0).

Answers

8 square unit to find the area of the parallelogram with vertices A(-4, 2), B(-2, 5), C(2, 3), and D(0, 0), follow these steps:


Step 1: Find the base and height vectors of the parallelogram. Let's use AB and AD as the base and height vectors, respectively.
AB = B - A = (-2 - (-4), 5 - 2) = (2, 3)
AD = D - A = (0 - (-4), 0 - 2) = (4, -2)



Step 2: Calculate the cross-product of the base and height vectors.
Cross product = AB_x * AD_y - AB_y * AD_x = (2 * -2) - (3 * 4) = -4 - 12 = -16

Step 3: Find the area by taking the absolute value of the cross product divided by 2.
Area = |Cross product| / 2 = |-16| / 2 = 8

The area of the parallelogram with vertices A(-4, 2), B(-2, 5), C(2, 3), and D(0, 0) is 8 square units.

To know more about area click here

brainly.com/question/13194650

#SPJ11

Your gross annual pay is $19 163. Employment insurance premiums are deducted at a rate of 2. 25% and Canada Pension Plan premiums are 3. 75% based on total earnings. You pay income taxes at a rate of 17% on all amounts over $8131. What is your Net Pay for the year?

Answers

The Net Pay for the year for gross annual pay is $19 163. Employment insurance premiums are deducted at a rate of 2 with income taxes at a rate of 17% on all amounts over $8131 is $16,137.03.

To find the net pay for the year, we need to subtract the deductions from the gross pay and then subtract the income tax from the remaining amount.

First, we need to find the total amount deducted for EI and CPP premiums:

EI premium = 2.25% of $19,163 = $431.67

CPP premium = 3.75% of $19,163 = $720.86

Total deductions = $431.67 + $720.86 = $1,152.53

Next, we need to find the taxable income by subtracting the basic personal amount from the gross pay:

Taxable income = $19,163 - $8,131 = $11,032

Then, we need to calculate the income tax on the taxable income:

Income tax = 17% of ($11,032) = $1,873.44

Finally, we can calculate the net pay by subtracting the total deductions and income tax from the gross pay:

Net pay = $19,163 - $1,152.53 - $1,873.44 = $16,137.03

Therefore, the net pay for the year is $16,137.03.

Learn more about the tax rate at

https://brainly.com/question/16339351

#SPJ4

If m∠BCD = 46 and m∠DCE = 71, what is the measure of ∠D? A. 19° B. 44° C. 46° D. 71°

Answers

The measure of angle D in is 19° which is option (A)

How to calculate individual angle

To measure D, recall that sum of the angles in a triangle is 180°. We have two angles in triangle BCD, so we can find the third angle as follows:

m∠BCD + m∠CBD + m∠DCB = 180°

46° + m∠CBD + 90° = 180° (since angle DCB is a right angle)

m∠CBD = 44°

Now, we can use the fact that the sum of the angles in triangle CDE is 180° to find the measure of angle D:

m∠CDE + m∠DCE + m∠ECD = 180°

m∠CDE + 71° + 90° = 180° (since angle ECD is a right angle)

m∠CDE = 19°

Learn more about angle here:

https://brainly.com/question/25716982

#SPJ1

What’s the answer? Please I need help

Answers

Answer:  21/29

Step-by-step explanation:

sin B = opposite side/hypotenuse

=21/29

Answer:

21/29

Step-by-step explanation:

sin B= opposite/hypotenuse

sin B = 21/29

This drawing shows two streets that cross each other. What kind of angle is formed where main street and oak stret

Answers

The solution is, the measure of angle 7 is, ∠7 = 145°.

Here, we have,

∠4 and ∠8 are corresponding angles

∠8 and ∠7 are supplementary angles

so, we get,

Then, ∠4 and ∠7 are supplementary angles.

This means that

∠4 + ∠7 = 180°

we, have,

35° + ∠7 = 180°

so, we get,

∠7 = 180° - 35°

or, ∠7 = 145°

Hence, The solution is, the measure of angle 7 is, ∠7 = 145°.

To learn more on angle click:

brainly.com/question/28451077

#SPJ1

complete question:

Oak Street and Elm Street run parallel to each other. When Main Street interest them, it forms interior angle 4, and measuring 35 degrees. What is the measure of angle 7 ?

How do you find the answer to this

(3+-/7)2
In radical

Answers

The solutions in radical form is

16 + 6√7 16 - 6√7How to solve in radical form

This is of the form

(3 ± √7)²

Then we have to write this in two cases such that

Case 1: (3 + √7)²

Case 2: (3 - √7)²

Solve the first case

(3 + √7)²

(3 + √7)(3 + √7)

= 3² + 2(3)(√7) + (√7)² =

9 + 6√7 + 7

= 16 + 6√7

Next we have to solve for case 2

(3 - √7)²

(3 - √7)(3 - √7)

= 3² - 2(3)(√7) + (√7)²

= 9 - 6√7 + 7

= 16 - 6√7

The values and solutions would be:

16 + 6√7 16 - 6√7

Read morte on radical form here:https://brainly.com/question/565192

#SPJ1

A: Plot point C so that its distance from the origin is 1. B: Plot point E 4/5 closer to the origin than C. What is its coordinate? DUE IN 10 MINUTES. HELP

Answers

A) A point C such that the distance from the origin can be plotted at (1, 0).

B) A point E which is at 4/5 closer to the origin than C can be plotted at (4/5, 0) = (0.8, 0)

A) Given a point O(0, 0).

A distance of 1 from the origin can be marked at 4 points :

(1, 0), (-1, 0), (0, 1) and (0, -1).

Using the distance formula, all the points from O is 1.

Let's take C as (1, 0).

B) Point E is at 4/5 closer to O than C.

Ratio of the distance between OE and EC is 4/5 : 1/5 = 4 : 1.

The section formula states that If a line with end points (x, y) and (x', y') is divided in the ratio m : n, then the divided point is,

P = [(mx' + nx)/(m + n) , (my' + ny)/ (m + n)]

Here (x, y) = (0, 0) and (x', y') = (1, 0)

m : n = 4 : 1

Using the section formula,

Coordinates of E = ((4 + 0)/ 5 , (0 + 0)/5) = (4/5, 0) = (0.8, 0).

If the distance between (0, 0) and (1, 0) is divided in to 5 segments, then the point E will be at 4th segment.

Hence the required coordinates are C(1, 0) and E(0.8, 0).

Learn more about Distance formula here :

https://brainly.com/question/25841655

#SPJ1

A super slide charges $1. 25 to rent a mat and $0. 75 per ride. Haru has $10. 25. How many rides can haru go on ?

Answers

Haru can go on 12 rides for $10.25, assuming he rents a mat for each ride and the prices remain unchanged.

The amount charged by slide = $1.25

Amount to rent a mat per ride = $0.75

Total amount with Haru = $10.25

Calculating the total amount that Haru has -

= Total amount with Haru - The amount charged by slide

= $10.25 - $1.25

= $9.00

Dividing is a mathematical process that includes dividing a sum into groups of equal size. It includes a remainder and a quotient as well.

Determining the number of rides Haru can go on:

= $9.00/ $0.75

= 12

Read more about dividing on:

https://brainly.com/question/25289437

#SPJ4

REASONING
5. In problem #4, there is a relationship between the measure of the smaller are intercepted by the tangents and
the measure of the exterior angle.
(a) Determine the relationship. If you need to,
generate more examples using the same
diagram. Illustrate the relationship with at
least one pair.
(b) If mAB=x, prove the relationship you
found in (a).

Answers

The relationship of the angles is ∠P = 1/2(ACB - AB) and the measure of angle P is (180 - x) degrees

Determining the relationship of the angles

Given that

Arc are intercepted by tangents and the exterior angle

The theorem of intersected tangents states that

The measure of the angle is the difference between the measures of the arc

So, the relationship of the angle is ∠P = 1/2(ACB - AB)

Proving the theorem in (a)

Here, we have

AB = x

This means that

ACB = 360 - x

So, we have

∠P = 1/2(360 - x - x)

When evaluated, we have

∠P = 180 - x

Hence, the measure of angle P is 180 - x degrees

Read more about angles at

https://brainly.com/question/28293784

#SPJ1

What is the concept of asymptotic stability?

Answers

Asymptotic stability is a property of a dynamical system where the solutions of the system approach a particular equilibrium point as time goes to infinity, but they do not oscillate or move away from the equilibrium point. In other words, the solutions of the system converge to the equilibrium point as time goes to infinity.

Formally, a critical point x* of a dynamical system x' = f(x) is asymptotically stable if for any solution x(t) that starts sufficiently close to x*, there exists a positive constant ε such that ||x(t) - x*|| → 0 as t → ∞, where ||.|| denotes the Euclidean norm.

Intuitively, this means that if the initial condition of the system is perturbed slightly from the equilibrium point, then the solutions of the system will still converge to the equilibrium point as time goes to infinity. This is a desirable property for many systems, as it implies that the system will eventually settle down to a steady state.

The concept of asymptotic stability is often studied in the context of linear systems, where the stability of the equilibrium point is determined by the eigenvalues of the system matrix. For a linear system, the equilibrium point is asymptotically stable if all the eigenvalues have negative real part. In this case, the solutions of the system decay to zero exponentially as time goes to infinity.

Overall, asymptotic stability is an important concept in the study of dynamical systems, as it provides a way to analyze the long-term behavior of a system and predict its future state.

Learn more about Asymptotic stability at https://brainly.com/question/31275012

#SPJ11

1) A liquor store owner wants to re-order their store to put the more expensive wines near the front. The owner samples 40 bottles of red and 40 bottles of white wine to find out which is more expensive. The owner finds the average price of white is $19.33, while the average price of red is $20.87 (standard deviation of $2.88 for white and $3.05 for red).
1a) What is the point estimate of the population price difference between red and white wines?
1b) What is the margin of error for alpha=0.01?
1c) What is the confidence interval for the difference between the two population means? Use alpha=0.05.

Answers

Answer:

Bellow

Step-by-step explanation:

1a) The point estimate of the population price difference between red and white wines is given by:

$$\bar{x}_1 - \bar{x}_2 = 20.87 - 19.33 = 1.54$$

Therefore, the point estimate of the population price difference between red and white wines is $1.54.

1b) The margin of error for alpha=0.01 can be calculated using the following formula:

$$ME = z_{\alpha/2}\cdot\sqrt{\frac{s_1^2}{n_1} + \frac{s_2^2}{n_2}}$$

where $z_{\alpha/2}$ is the critical value of the standard normal distribution for the given level of significance, $s_1$ and $s_2$ are the sample standard deviations, and $n_1$ and $n_2$ are the sample sizes for the two populations.

For alpha=0.01, the critical value of the standard normal distribution is $z_{\alpha/2}=2.58$. Substituting the given values, we get:

$$ME = 2.58\cdot\sqrt{\frac{2.88^2}{40} + \frac{3.05^2}{40}} \approx 1.01$$

Therefore, the margin of error for alpha=0.01 is approximately $1.01.

1c) The confidence interval for the difference between the two population means can be calculated using the following formula:

$$(\bar{x}_1 - \bar{x}_2) \pm z_{\alpha/2}\cdot\sqrt{\frac{s_1^2}{n_1} + \frac{s_2^2}{n_2}}$$

For alpha=0.05, the critical value of the standard normal distribution is $z_{\alpha/2}=1.96$. Substituting the given values, we get:

$$(20.87 - 19.33) \pm 1.96\cdot\sqrt{\frac{2.88^2}{40} + \frac{3.05^2}{40}}$$

Simplifying this expression, we get:

$$(1.54) \pm 1.11$$

Therefore, the 95% confidence interval for the difference between the two population means is approximately $(0.43, 2.65)$.

For a random bit string of length n find the expected value of a random function X that counts the number of pairs of consecutive zeroes. For example X(00100) = 2, X(00000) = 4, X(10101) = 0, X(00010) = 2.

Answers

To find the expected value of X, we need to first determine the probability of having a pair of consecutive zeroes in a given bit string of length n. Let P be the probability of having a pair of consecutive zeroes in any given position of the bit string.

We can calculate P by considering the possible pairs of consecutive zeroes that can occur in a bit string of length n. There are n-1 pairs of adjacent bits in the bit string, so the probability of a given pair being two zeroes is 1/4 (since there are four possible pairs: 00, 01, 10, 11). However, if the first bit is 0 or the last bit is 0, then there are only n-2 pairs, and the probability of a given pair being two zeroes is 1/2. Therefore, the probability of having a pair of consecutive zeroes in a bit string of length n is:

P = [(n-2)/n * 1/4] + [1/n * 1/2] + [1/n * 1/2] + [(n-2)/n * 1/4]
 = (n-3)/2n + 1/n

Now, let Xi be the random variable that counts the number of pairs of consecutive zeroes that start at position i in the bit string (where 1 <= i <= n-1). Then X = X1 + X2 + ... + Xn-1 is the total number of pairs of consecutive zeroes in the bit string.

To find the expected value of X, we use linearity of expectation:

E[X] = E[X1] + E[X2] + ... + E[Xn-1]

We can calculate E[Xi] for any i by considering the probability of having a pair of consecutive zeroes starting at position i. If the i-th and (i+1)-th bits are both 0, then there is one pair of consecutive zeroes starting at position i. The probability of this occurring is P. If the i-th bit is 0 and the (i+1)-th bit is 1, then there are no pairs of consecutive zeroes starting at position i. The probability of this occurring is 1-P. Therefore, we have:

E[Xi] = P * 1 + (1-P) * 0
      = P

Finally, we substitute our expression for P into the formula for E[X] to get:

E[X] = (n-3)/2n + 1/n * (n-1)
    = (n-3)/2n + 1

So the expected value of X for a random bit string of length n is (n-3)/2n + 1.
To find the expected value of a random function X that counts the number of pairs of consecutive zeroes in a random bit string of length n, we can follow these steps:

1. Calculate the total number of possible bit strings of length n. There are 2^n possible bit strings since each position can be either a 0 or a 1.

2. Find the probability of each pair of consecutive zeroes occurring in the bit string. Since there are 2 possible values for each bit (0 or 1), the probability of a specific pair of consecutive zeroes is 1/4 (0.25).

3. Determine the maximum number of pairs of consecutive zeroes in a bit string of length n. The maximum number is n - 1 since the first n - 1 bits can form pairs with the bits that follow them.

4. Calculate the expected value by multiplying the probability of each pair of consecutive zeroes by the number of pairs that can occur, and sum the results. The expected value E(X) can be calculated using the formula:

E(X) = Sum(P(i) * i) for i from 0 to n - 1, where P(i) is the probability of i pairs of consecutive zeroes occurring.

To simplify the calculation, consider that each position has a 1/4 chance of forming a consecutive zero pair with the following position, and there are n - 1 such positions:

E(X) = (1/4) * (n - 1)

So, the expected value of a random function X that counts the number of pairs of consecutive zeroes in a random bit string of length n is (1/4) * (n - 1).

To learn more about consecutive : brainly.com/question/13070546

#SPJ11

Suppose two cards are drawn randomly.
What is the probability of
drawing two green cards, if
the first card IS replaced
before the second draw?
Assume the first card
drawn is green.
[?]
Show your answer as a
fraction in lowest terms.
Enter the numerator.

Answers

The probability of drawing two green cards is 25/169

Calculating the probability of drawing two green cards

From the question, we have the following parameters that can be used in our computation:

Cards = 13

Green = 5

Selecting the first card we have

P(Green) = 5/13

The card is returned

So, we have the probablility of the second to be

P(Green) = 5/13

The probability of drawing two green cards is

P = 5/13 * 5/13

Evaluate

P = 25/169

Hence, the probability is 25/169

Read more about probability at

https://brainly.com/question/24756209

#SPJ1

PLEASE HELP I INCLUDED A WRITTEN VERSION OF MY PROBLEM I WROTE IT PLEASE HELP!!!
Factor.

x2−6x+9


Responses

(x−3)2
left parenthesis x minus 3 right parenthesis squared

(x−9)2
left parenthesis x minus 9 right parenthesis squared

(x+3)2
left parenthesis x plus 3 right parenthesis squared

(x+9)2

Answers

Answer:

A

Step-by-step explanation:

x^2-6x+9

to factorise this you need two numbers that times to make 9 and add to make -6

these two numbers are -3 and -3

putting it into brackets is

(x-3)(x-3)

this can also look like

(x-3)^2

so the answer is A

T/F A truth table for p V ~q requires four possible combinations of truth values.

Answers

False. A truth table for p V ~q requires only two possible combinations of truth values.

False. A truth table for p V ~q requires a total of two possible combinations of truth values.

The statement "p V ~q" is a logical disjunction, meaning it is true if either p is true or ~q is true (or both). There are only two possible truth values for each of these propositions: true or false. Therefore, there are only two possible combinations of truth values for the statement "p V ~q," which are:

- p is true, ~q is false (i.e., q is true)
- p is true, ~q is true (i.e., q is false)

Visit to know more about Truth values:-

brainly.com/question/28972350

#SPJ11

2. Quadrilateral ABCD is inscribed in a circle. Find the measure of each of the angles of the quadrilateral. Show your work.

Answer:

Answers

The angles of the cyclic quadrilateral are

84 degrees96 degrees98 degrees80 degrees

How to find the measure of the angles

In a cyclic quadrilateral the opposite angles are supplementary hence we have that

x - 4 + x + 8 = 180 degrees

gathering like terms

2x = 180 - 8 + 4

2x = 176

isolating x

x = 88 degrees

angles on each side

x- 4 = 88 - 4 = 84

x + 8 = 88 + 8 = 96

2x - 78 = 2(88) - 78 = 98

sum of the angles of a cyclic quadrilateral is 360

the fourth angle = 360 - 84 - 96 - 98

the fourth angle = 80 degrees

Learn more about cyclic quadrilateral at

https://brainly.com/question/26690979

#SPJ1

VERY IMPORTANT WILL GIVE BRAINLIEST 100 pts PLS HELP!!!!

Answers

Answers are in bold:

Complete the Square: x^2+6x+(6/2)^2+y^2-4y+(4/2)^2=23+(6/2)^2+(4/2)^2

Simplify: x^2+6x+9+y^2-4y+4=23+9+4
              (x+3)^2+(y-2)^2=36

^That will be the standard equation^

The vertex is (-3,2) and the radius is 6 (sqr36).

To find the domain and range, note that their interval is on the vertical and horizontal diameter of the circle, fixed on a vertex point.

This means that the domain is the x value (-3) of the vertex + or - the radius (6): 3 and -9

Hence, domain is -9<=x<=3

Find the range using the same method: 8 and -4

Range is -4<=x<=8

Answer:

Standard equation =(x+3)²+(x-2)²=6²

Domain:     -9 ≤ x ≤ 3

Range:     -4 ≤ y ≤ 8  

Step-by-step explanation:

You need to put it in a format

(x-h)²+(y-k)²=r²  where (h,k) is your center

Equation:

x²+y²+6x-4y=23        rearrange the variables so x's and y's are together

x²+6x     +y²-4y      =23    complete the square for the quadratic by taking the middle term of each quadratic 6 and -4  

divide by 2 => [tex](\frac{6}{2} )^{2}[/tex] =9    and   [tex](\frac{-4}{2} )^{2} = 4[/tex]

add 9 and 4 to both sides

x² + 6x + 9 + y² - 4y + 4 = 23 +9+4     factor both of the quadratics

(x+3)(x+3) +(x-2)(x-2) = 36

(x+3)²+(x-2)²=36      now put it in form with radius

(x+3)²+(x-2)²=6²      (-3,2) center    and r=6

Standard equation =(x+3)²+(x-2)²=6²

Domain: we get that by where the circle starts and ends for x.  Since the radius is 6   and the center x point is -3

move left 6 from -3, that's your lower domain = -6-3=-9

move 6 right from center, that's your upper domain = -3+6 = 3

Domain:     -9 ≤ x ≤ 3  circle is between -9 and 3 in the x direction

Range: Now we do same for range but in y direction

Center y point is 2

move down 6 from 2 = -6+2 =-4, this is lower range

move up 6 from 2 = 2+6=8, this this is your upper range

Range:     -4 ≤ y ≤ 8   circle is between -4 and 8 for y direction

Suppose that A is the set of sophomores at your school, B is the set of students in discrete mathematics at your school, and the universal set U is the set of all students at your school. Match the sets given in the left to their symbolic expression in the right. 1. The set of sophomores at your school who are not taking discrete mathematics 2. The set of sophomores taking discrete mathematics in your school 3. The set of students at your school who either are sophomores or are taking discrete mathematics 4. The set of students at your school who either are not sophomores or are not taking discrete mathematic

Answers

1. The set of sophomores at your school who are not taking discrete mathematics: A ∩ Bᶜ.
2. The set of sophomores taking discrete mathematics in your school: A ∩ B.
3. The set of students at your school who either are sophomores or are taking discrete mathematics: A ∪ B.
4. The set of students at your school who either are not sophomores or are not taking discrete mathematics: Aᶜ ∪ Bᶜ.

1. The set of sophomores at your school who are not taking discrete mathematics can be represented symbolically as A - B. This means that we take all the elements in set A (sophomores) and subtract the elements in set B (students taking discrete mathematics) from it, which gives us the set of sophomores who are not taking discrete mathematics.

2. The set of sophomores taking discrete mathematics in your school can be represented symbolically as A ∩ B. This means that we take the intersection of sets A and B, which gives us the set of students who belong to both sets A and B. In this case, it gives us the set of sophomores taking discrete mathematics.

3. The set of students at your school who either are sophomores or are taking discrete mathematics can be represented symbolically as A ∪ B. This means that we take the union of sets A and B, which gives us the set of all students who belong to either set A or set B (or both). In this case, it gives us the set of all sophomores and all students taking discrete mathematics.

4. The set of students at your school who either are not sophomores or are not taking discrete mathematics can be represented symbolically as U - (A ∩ B). This means that we take the complement of the intersection of sets A and B from the universal set U. In other words, we take all the elements in the universal set U and subtract the elements that belong to both sets A and B, which gives us the set of all students who either are not sophomores or are not taking discrete mathematics.

1. The set of sophomores at your school who are not taking discrete mathematics: A ∩ Bᶜ. This represents the intersection of set A (sophomores) and the complement of set B (students not in discrete mathematics).

2. The set of sophomores taking discrete mathematics in your school: A ∩ B. This represents the intersection of set A (sophomores) and set B (students in discrete mathematics).

3. The set of students at your school who either are sophomores or are taking discrete mathematics: A ∪ B. This represents the union of set A (sophomores) and set B (students in discrete mathematics).

4. The set of students at your school who either are not sophomores or are not taking discrete mathematics: Aᶜ ∪ Bᶜ. This represents the union of the complement of set A (students not in the sophomore class) and the complement of set B (students not in discrete mathematics).

To learn more about discrete mathematics, click here:

brainly.com/question/30409326

#SPJ11

Although the technology was not specifically mentioned in the unit, there is no denying it has become such a huge part of our lives – including our fitness. What are some ways that increased technology use has negatively impacted personal fitness? What are some ways that it has helped personal fitness?

Answers

Answer: One way is video games. Video games help people escape from reality, which prevents people from going out and exercising. One way is treadmills, where you are able to increase your heart rate through cardio without straining the body.

Step-by-step explanation: a

Deborah studies dolphins and wants to estimate the population in a certain region. She catches 60 dolphins, marks them, and releases them. At a later point, Deborah catches 330 dolphins and observes that 33 of them are marked. To the nearest whole number, what is the best estimate for the dolphin population?

Answers

The best estimate for the dolphin population in the region is 600 dolphins.

Estimated Population Size = (Number of dolphins captured) × (Number of dolphins recaptured) / (Number of marked dolphins recaptured)

In this case, the equation would be:

Estimated Population Size = (60) × (330) / (33)

This equation simplifies to:

Estimated Population Size = 600

Therefore, the best estimate for the dolphin population in the region is 600 dolphins.

To learn more about the unitary method visit:

brainly.com/question/22056199.

#SPJ1

If a local car dealership sells new and used car the total number of cars currently at the dealership is 114.The dealership reported that they have 5 new cars for every 1 used car on the lot, how many total used cars are currently on the lot?

Answers

Using the given ratio we can see that there are 19 used cars.

How to find the number of used cars?

We know that the dealership reported that they have 5 new cars for every 1 used car on the lot, so we need to use that ratio.

5/6 of the cars are new.

1/6 of the cars are used.

The total number is 114, then the number of used cars is:

(1/6)*114 = 19

There are 19 used cars.

Learn more about ratios at:

https://brainly.com/question/2328454

#SPJ1

Please help me with this homework only the answer

Answers

Answer: 9/8 is the slope

The Sweet Encounter is a touring International candy festival. The festival's most popular product is rainbow lollipops. At one stop of the tour, 17 out of every 53 products offered are rainbow lollipops. At that stop, the festival promoter took a sample of the products offered. He found that 27 of the 82 products offered in his sample were rainbow lollipops. For the festival promoter's sample, find and write with proper notation the sample proportion and population proportion of products offered that were rainbow lollipops. Write the proportions as decimals (not percentages) rounded to two decimal places

Answers

The sample proportion of rainbow lollipops in the festival promoter's sample is 0.33 (27/82), rounded to two decimal places. The population proportion of rainbow lollipops among all products offered at the stop of the tour is 0.32 (17/53), rounded to two decimal places.

The sample proportion and population proportion of rainbow lollipops in the given situation.

For the entire population (all products offered) at the stop, there were 17 rainbow lollipops out of every 53 products offered. To find the population proportion (P), we can use the formula:

P = Number of Rainbow Lollipops / Total Number of Products
P = 17 / 53

Now let's calculate the population proportion:
P ≈ 0.32 (rounded to two decimal places)

For the festival promoter's sample, he found that 27 of the 82 products offered were rainbow lollipops. To find the sample proportion (p'), we can use the formula:

p' = Number of Rainbow Lollipops in Sample / Total Number of Products in Sample
p' = 27 / 82

Now let's calculate the sample proportion:
p' ≈ 0.33 (rounded to two decimal places)

So, in proper notation, the population proportion (P) is approximately 0.32, and the sample proportion (p') is approximately 0.33.

Learn more about the sample:

brainly.com/question/27860316

#SPJ11

a rectangle has side lengths of 3 and 4 one of its verticles is at the point 1,2 which of the following could not be the coordinates of one of its other verticles? A -3,-1 B 1,-5 C 5,-1 D -2,6 E1,-1 helb, 15 points

Answers

The following which could not be the coordinates of one of its other vertices is (1, -5).

Given that,

Rectangle has side lengths of 3 and 4.

One of the vertices = (1, 2).

We have to find the other coordinates of the vertex.

The distance from the other vertex to this vertex needs to be either 3 or 4.

Find the distance using the distance formula.

A. (-3, -1) from (1, 2)

Distance = √(1 + 3)² + (2 + 1)² = √25 = 5

B. (1, -5) from (1, 2)

Distance = √(1 - 1)² + (2 - -5)² = √49 = 7

C. (5, -1) from (1, 2)

Distance = √(1 - 5)² + (2 - -1)² = √25 = 5

D. (-2, 6) from (1, 2)

Distance = √(1 - -2)² + (2 - 6)² = √25 = 5

Hence the coordinate which cannot be the other vertex is (1, -5).

Learn more about Coordinates here :

https://brainly.com/question/16634867

#SPJ1

I need help with domain, range, vertical asymptote, horizontal asymptote

Answers

a) The domain of the function is D : x < 7 or x > 7

b) The range of the function R : f ( x ) < 6

c) The vertical asymptote : x = 7

d) The horizontal asymptote : y = 6

Given data ,

Let the function be represented as f ( x )

Now , the value of f ( x ) is

f ( x ) = [ -1/ ( 5x - 35 )² ] + 6

On simplifying , we get

when the denominator is simplified to 0 , the function is undefined

So , 5x - 35 = 0

Adding 35 on both sides , we get

5x = 35

x = 7

So , the domain cannot be 7

a) The domain of the function is D : x < 7 or x > 7

b) The range of the function R : f ( x ) < 6

c) The vertical asymptote : x = 7

d) The horizontal asymptote : y = 6

To learn more about domain and range click :

https://brainly.com/question/28135761

#SPJ1

Other Questions
Find the values of x1 and x2 where the following two constraints intersect. ( Negative values should be indicated by a minus sign. Round your answer to 3 decimal places.1. 9x1 + 7x2 572. 4x1 + 6x2 3 Rotations : If the point (6,2) was on a figure that was rotated 180 degrees clockwise what would be the coordinates of the new point on this figure a software development company set up a website for client access to the company's application. the company needs to ensure the interactions on the website are secure. what do they need to set up? World at Work defines a total rewards strategy as the six elements of total rewards that collectively define an organization s strategy to attract, motivate, retain and engage employees. Which of the following is NOT an element of this total rewards? Benefits Recognition Employee life cycle Work-life effectiveness Compensation QUESTION 8 Pregnancy-related benefits can be limited to married employees under the Pregnancy Discrimination Act. True False QUESTION 10 According to the WSJ article about forced arbitration, what percentage of the American Arbitration Association's employment cases are sexual-harassment claims annually? 3.5% 100% 6.2% 13% The relative changes in concentration of the substances involved in an equilibrium as the system equilibrates can be determined by looking at the:A. temperature of the systemB. Pressure of the systemC. Stoichiometry of the equilibriumD. Any of the Above you wish to create an image that is 10 meters from an object. this image is to be upright and half the height of the object. you wish to accomplish this using one spherical mirror.what is the magnitude r of the radius of curvature of this mirror? express your answer in meters, as a fraction or to three significant figures. if you wanted to know how frequently a specific problem was occurring in your operations, which tools of quality control would you most likely use? Public __________ penalties occur when a criminals conviction is made visible to several people. A machine that is used to print newspapers is aO natural resourceOhuman capitalO capital goodOrenewable resource During total hip arthroplasty (THA) via a posterior approach, where is the sciatic nerve most likely to be found? Use the image to determine the line of reflection.An image of polygon VWYZ with vertices V at negative 11, 2, W at negative 11, 0, Y at negative 5, 0, and Z at negative 5, 2. A second polygon V prime W prime Y prime Z prime with vertices V prime at 7, 2, W prime at 7, 0, Y prime at 1, 0, and Z prime at 1, 2. Reflection across the x-axis Reflection across the y-axis Reflection across x = 2 Reflection across y = 2 Assuming an otherwise valid offer, which of the following would be the Melnick's best rationale in trying to enforce a contract for the sale of three peppers for two cents?rescission and damages, if out of pocket expenses were incurred as a result of the fraud.Probably not because there is no statement of material fact since he did not say he was a medical doctor.A unilateral mistake does not relieve the party who made the mistake from contract liability. Consider a nation in which the price index last year was 130 and this year it is 150. Which statement is correct? Inflation was 20 percent this year. Deflation was 20 percent this year. Housing prices must have risen. Inflation was 15 percent this year. Deflation was 15 percent this year. sebastopol movie theater will need $190,000 in 5 years to replace the seats. what deposit should be made today in an account that pays 0.8% compounded semiannually? A website with many subdomains has been issued a web server certificate for domain validation. This certificate verifies the parent domain and subdomains (to a single level). This certificate is also known as which of the following?Wildcard certificate Suppose that ACME is regulated at the zero-profit price, how much will ACME produce? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer a. 60 b. 80 . 110d. 0 In need it done by 8:00 and it ok if you respond late In the story The Elevatorby William Sleator write 8 Key Events and or details about the stairs and or the elevator On January 1, Payson Inc. had a retained earnings balance of $22,000. During the year, Payson reported net income of $30,200 and paid cash dividends of $17,200. Calculate the retained earnings balance at its December 31 year-end. In the long run, a monopolistically competitive firm earns positive economic profits. earns negative economic profits.a. Trueb. False Amylose and amylopectin are examples of {{c1::starches}}