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.
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what line passes through (8,2) and is parallel to y= 1/2x +1
The equation of the line is y = 1/2x - 2
Calculating the equation of the lineFrom 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
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Cos (90°-0) / sin (180°- 0) - sin^2 (-0)
The answer to the mathematical expression of Cos (90°-0) / sin (180°- 0) - sin^2 (-0) is:
= -1
How to calculate the expressionTo 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.
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Eric owns and operates the Hot Ham food truck. The expression
3.25
�
+
2
ℎ
3.25b+2h3, point, 25, b, plus, 2, h gives the cost of
�
bb burgers and
ℎ
hh hot dogs.
What is the cost of
4
44 burgers and
6
66 hot dogs?
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.
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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.
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
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B
Problem Solving
HABITS
measure of
Be Precise Describe the rays of an angle that has a measure of 1/2 turn
The rays of the angle from the measure 1/2 turn is 180 degrees
Describing the rays of the angle from the measureFrom 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
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find the area of the parallelogram with vertices a(−4, 2), b(−2, 5), c(2, 3), and d(0, 0).
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.
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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?
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.
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If m∠BCD = 46 and m∠DCE = 71, what is the measure of ∠D? A. 19° B. 44° C. 46° D. 71°
The measure of angle D in is 19° which is option (A)
How to calculate individual angleTo 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°
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What’s the answer? Please I need help
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
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°.
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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
The solutions in radical form is
16 + 6√7 16 - 6√7How to solve in radical formThis 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:
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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
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).
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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 ?
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
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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).
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 anglesGiven 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
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What is the concept of asymptotic stability?
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.
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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.
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.
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).
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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.
The probability of drawing two green cards is 25/169
Calculating the probability of drawing two green cardsFrom 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
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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
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.
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)
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2. Quadrilateral ABCD is inscribed in a circle. Find the measure of each of the angles of the quadrilateral. Show your work.
Answer:
The angles of the cyclic quadrilateral are
84 degrees96 degrees98 degrees80 degreesHow to find the measure of the anglesIn 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
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VERY IMPORTANT WILL GIVE BRAINLIEST 100 pts PLS HELP!!!!
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
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).
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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?
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?
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.
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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?
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.
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Please help me with this homework only the answer
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
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.
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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
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).
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I need help with domain, range, vertical asymptote, horizontal asymptote
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
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