If you use a 0.02 level of significance in a (two-tail) hypothesis test, what is your decision rule for rejecting a null hypothesis that the population mean is 950 if you use the Z test? Which of the following decision rules is correct?
A. Reject H0 if -2.05 < Zstat +2.05.
B. Reject H0 if Zstat < -2.05 or Zstat > + 2.05.
C. Reject H0 if Zstat< -2.33 or Zstat > +2.33.
D. Reject H0 if -2.33 < Zstat < +2.33.

Answers

Answer 1

The correct decision rule for a test hypothesis with a significance level of 0.02, with two tails, is given as follows:

C. Reject H0 if Zstat< -2.33 or Zstat > +2.33.

What is the relation between the p-value and the conclusion of the test hypothesis?

The decision regarding the null hypothesis depends on if the p-value is less or more than the significance level:

If it is more, the null hypothesis is not rejected, meaning that the result obtained on the research study is not statistically significant.If it is less, it is rejected, meaning that the result obtained on the research study is statistically significant.

For a two-tailed test with a significance level of 0.02, the critical value is given as follows:

z = 2.33.

Hence the decision rule is given as follows:

|z| < 2.33 -> p-value < 0.02 -> do not reject H0.|z| > 2.33 -> p-value > 0.02 -> reject H0.

Hence option C is the correct option for this problem.

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Related Questions

According to government data, 22% of American children under the age of 6 live in households with incomes less than the official poverty level. A study of learning in early childhood chooses an SRS of 300 children from one state and finds that .
a. Find the probability that at least 29% of the sample are from poverty-level households, assuming that 22% of all children under the age of 6 in this state live in poverty-level households.
b. Based on your answer to part (a), is there convincing evidence that the percentage of children under the age of 6 living in households with incomes less than the official poverty level in this state is greater than the national value of 22%? Explain your reasoning.
a. The resultant probability is 0.17%
b. The resultant statement greater than the national value of 22% is true.

Answers

The probability that at least 29% of the sample are from poverty-level households is 0.17% and we do not have enough evidence to reject the null hypothesis that the population proportion is equal to 22%.

According to government data, 22% of American children under the age of 6 live in households with incomes less than the official poverty level. A study of learning in early childhood chooses an SRS of 300 children from one state and finds that at least 29% of the sample are from poverty-level households.

To answer part (a) of the question, we can use the normal approximation to the binomial distribution. The mean of the distribution is np = 300 * 0.22 = 66 and the standard deviation is sqrt(np(1-p)) = sqrt(66 * 0.78) = 7.09. We can use the normalcdf function to find the probability that at least 29% of the sample are from poverty-level households:

normalcdf(87.5, 300, 66, 7.09) = 0.0017

So the probability is 0.17%.

For part (b) of the question, we need to determine if there is convincing evidence that the percentage of children under the age of 6 living in households with incomes less than the official poverty level in this state is greater than the national value of 22%.

Since the probability that at least 29% of the sample are from poverty-level households is 0.17%, which is very small, we can conclude that there is not convincing evidence that the percentage of children under the age of 6 living in households with incomes less than the official poverty level in this state is greater than the national value of 22%.

The small probability suggests that the observed sample result is unlikely to occur by chance if the true population proportion is 22%, so we do not have enough evidence to reject the null hypothesis that the population proportion is equal to 22%.

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He amount of soda in a 12 ounce bottle is supposed to be 12 ounces, right? There is some variability in the amount that the machines dispense into the bottles. Let the real amount of soda in each bottle follow a Normal distribution with mean 12. 2 and standard deviation 0. 3.

If the bottle can only hold 13 ounces, what is the probability the bottle will overflow?


(In other words, what is the probability that the machine dispenses more than 13 ounces?)

Answers

If the bottle can only hold 13 ounces, then the probability the bottle will overflow is approximately 0.0032 or 0.32%.

First, we need to calculate the z-score, which is the number of standard deviations that the mean value of 12.2 ounces is away from the bottle's capacity of 13 ounces. We can calculate the z-score using the formula:

z = (x - μ) / σ

where x is the bottle capacity (13 ounces), μ is the mean value of soda dispensed by the machine (12.2 ounces), and σ is the standard deviation (0.3 ounces).

Substituting the values, we get:

z = (13 - 12.2) / 0.3 = 2.67

The z-score of 2.67 means that the bottle capacity of 13 ounces is 2.67 standard deviations away from the mean value of soda dispensed by the machine.

Substituting the values, we get:

P(Z > 2.67) = 1 - P(Z ≤ 2.67) = 1 - 0.9968 = 0.0032

Therefore, the probability of the soda bottle overflowing is approximately 0.0032 or 0.32%.

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a model rocket is 5cm tall. If it was built with a scale of 1cm: 2m, then how tall is the real rocket?

Answers

Answer:

If the model is 5cm and 1cm is equal to 2m, it means the actual rocket is 10 meters.

Step-by-step explanation:

1cm = 2m

5cm is 5 times the amount of 1cm.

10m is 5 times the amount of 2m

Answer : 10 Meters

Explanation : 2 × 5 = 10

kira will rent a car for the weekend. she can choose one of two plans. the first plan has an initial fee of $45 and costs an additional $0.30 per mile driven. the second plan has no initial fee but costs $0.80 per mile driven. for what amount of driving do the two plans cost the same? miles what is the cost when the two plans cost the same? $

Answers

The two plans will cost the same if Kira drives 90 miles over the weekend.

The two plans cost the same when Kira drives 90 miles, and the cost of each plan is $72.

To find the mileage for which the two plans cost the same and the cost at that mileage, you should set the cost expressions for both plans equal to each other. After that, you will solve for the mileage (x).

The steps to do this are as follows:Let the mileage be x

The cost of plan 1 (C1) is given by:

C1 = 45 + 0.30x

The cost of plan 2 (C2) is given by:

C2 = 0.80 x

To find the mileage at which both plans cost the same, set C1 equal to C2 and solve for x:

45 + 0.30 x = 0.80 x x (0.30 - 0.80) = - 45- 0.50 x = -45 x = -45/-0.50 x = 90

To find the cost when the two plans cost the same,

substitute x = 90 into one of the expressions for cost.

C1 = 45 + 0.30x = 45 + 0.30(90) = 45 + 27 = $72C2 = 0.80x = 0.80(90) = $72

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Sean throws the discus at a school meet and the height of the discus is given by the function h=-16+2 + 38t + 5, where h is in feet and t represents the seconds after throwing. A. What is the initial height of the discus? b. After how many seconds does it take for the discus hit the ground?

Answers

Hence, in response to the provided question, we can say that As a result,  function the discus takes approximately 0.03125 seconds to strike the ground.

what is function?

Mathematicians research numbers and their variants, equation and related structures, objects and their locations, and prospective locations for these things. The term "module" is used to describe the connection that exists in between set of inputs, each of which has a corresponding output. A function is an input-output connection in which each inputs results in something like a single, distinct return. A domain, codomain, or scope is assigned to each function. Functions are usually denoted by the letter f. (x). An x is used for entry. On capabilities, one-to-one capabilities, multiple prowess, in capabilities, and on capabilities are the four major types of accessible functions.

The supplied function for discus height is as follows:

[tex]h(t) = -16t^2 + 38t + 5\\h(0) = -16(0)^2 + 38(0) + 5 = 5[/tex]

As a result, the discus's starting height is 5 feet.

[tex]-16t^2 + 38t + 5 = 0\\[/tex]

To find t, we can apply the quadratic formula:

t = (-b \sqrt(b2 - 4ac)) (2a)

where a=-16, b=38, and c=5.

[tex]t = (-38 + \sqrt(38^2 - 4(-16)(5))) / (2(-16))\\t = (-38 + \sqrt(1524)) / (-32) (-32)\\t = (-38 + 39) / (-32) (-32)\\[/tex]

As a result, [tex]t = (-38 + 39) / (32) or t = (-38 - 39) / (32) (-32)[/tex]

t = 1/32 or t = 77/32

As the negative value doesn't make sense in this situation, we chose the positive value:

t = 1/32

As a result, the discus takes approximately 0.03125 seconds to strike the ground.

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Use the Pythagorean identity, (a²- y2)2 + (2xy)² = (x² + y²)2, to create a Pythagorean triple.
Follow these steps:
1. Choose two numbers and identify which is replacing and which is replacing y.
2. How did you know which number to use for x and for y
3. Explain how to find a Pythagorean triple using those numbers.
4. Explain why at least one leg of the triangle that the Pythagorean triple represents must have an even-numbered length.

Answers

The Pythagorean triple created by the steps are (3, 4, 5) where the hypotenuse is 5

How to create a Pythagorean triple.

The numbers x and y

Let's choose 3 and 4 as our x and y, respectively.

How we chose x and y

We can choose any numbers for x and y.

However, we usually choose numbers such that x > y to avoid duplicates.

Finding the triple

To find the Pythagorean triple, we substitute x = 3 and y = 4 in the Pythagorean identity:

(x²- y²)² + (2xy)² = (x² + y²)²

(3² - 4²)² + (2(3)(4))² = (3² + 4²)²

(-7)² + (24)² = (9)² + (16)²

49 + 576 = 81 + 256

625 = 625

We can see that this equation is true, which means that (3, 4, 5) is a Pythagorean triple.

Why at least one leg must be even

At least one leg of the triangle represented by the Pythagorean triple must have an even-numbered length because if one of the legs is odd, then the other leg and the hypotenuse must be odd too.

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Please answer the both questions in the photos below ( will mark brainliest if available + 30p )

Answers

Answer:

(5,1)

(7, -5)

Step-by-step explanation:

y = mx + b

The b is the y intercept.  This is where the graph crosses the y axis.  Graph this first.  The m is the slope.  It is the rise over the run.  You can make any number a fraction by putting it over 1.  From the y-intercept you use the slope (rise/run) to graph the second point.  

For example, if the slope is 1. then 1/1 would show your rise and run. Start when the y-intercept is and go up 1 and then 1 right.  Connect the two points that you have graphed.

If the slope is 2/7, then from the y-intercept go up 2 and right 7.  Graph that point and draw a line connecting that point to the point on the y-intercept.

Helping in the name of Jesus.

ANSWER OF THE FIRST TWO EQUATIONS

y = x -4

y= -x+6

both the equations represent a straight line with y intercept as -4 and 6 respectively

x-y-4 = 0. ........(equation 1)

x+y-6 = 0. .........(equation 2)

adding equation 1 and 2

2x - 10 = 0

x = 5

subtracting equation 2 from 1

-2y -2 = 0

y = 1

FINAL ANS : (5,1)

Q26) Suppose you are a project manager, and you estimate that the time it takes to complete a particular task on your project follows a normal distribution with a mean of 20 days and a standard deviation of 3 days. What is the probability that the task will take more than 25 days to complete?

Answers

The probability that the task will take more than 25 days to complete is 0.0475 or approximately 4.75%.

To find the probability of a task taking more than 25 days to complete, given that the mean and standard deviation of the normal distribution are 20 and 3 days, respectively, one can use the Z-score formula.Z = (X - μ)/σwhere Z is the standard score, X is the observed value, μ is the mean, and σ is the standard deviation. Therefore,Z = (25 - 20)/3 = 5/3 ≈ 1.67The area to the right of Z = 1.67 on a standard normal distribution table represents the probability that the task will take more than 25 days to complete. Using a standard normal distribution table or calculator, we can find that P(Z > 1.67) = 0.0475 or approximately 4.75%.Therefore, the probability that the task will take more than 25 days to complete is 0.0475 or approximately 4.75%.

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Solve for x.


a. 4°

b. 4. 5°

c. 6°

d. 11. 5°

Answers

The cοrrect answer is d. 11.5°, This is because the equatiοn 4x = 46 can be rearranged tο x = 46/4 = 11.5.

What is equatiοn?

An equatiοn is a mathematical statement that describes the relatiοnship between twο values using an equal sign. It cοnsists οf twο expressiοns οn either side οf the equal sign, and the expressiοns must be equal in οrder fοr the equatiοn tο be true. Equatiοns are used tο sοlve prοblems and tο understand hοw different variables interact with each οther.

Fοr example, the equatiοn "2 + 2 = 4" is true because twο plus twο dοes in fact equal fοur. Equatiοns can alsο be used tο represent physical phenοmena, such as the equatiοn F = ma, which describes the relatiοnship between fοrce and mass. Equatiοns can be used tο sοlve many prοblems in mathematics, science, engineering, ecοnοmics, and οther fields.

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A line is breaking a segment into two making two angles, one of the angle is 46° which 4 times the other angle x. Solve for x

a. 4°

b. 4. 5°

c. 6°

d. 11. 5°

Solve for x. Round your final answer to the nearest tenth.
Law of cosines.
55 90 50

Answers

Answer: the length of side c is approximately 74.3 units.

Step-by-step explanation: In a triangle with sides a, b, and c, and opposite angles A, B, and C, respectively, the Law of Cosines states that:

c^2 = a^2 + b^2 - 2ab*cos(C)

We are given the following information:

a = 55 (the side opposite angle A)

b = 50 (the side opposite angle B)

C = 90 degrees (the angle opposite side c)

Substituting these values into the Law of Cosines, we get:

c^2 = 55^2 + 50^2 - 2(55)(50)*cos(90)

c^2 = 3025 + 2500 - 0

c^2 = 5525

Taking the square root of both sides, we get:

c = sqrt(5525)

c ≈ 74.3

please help
30 points

Answers

The baker can decorate 1.4 or 1 1/3 of cupcakes in a minute.Step-by-step explanation: 42 cupcakes in 30 minutes so if you divide 42 cupcakes in 30 groups you get 1 in each group and 12 left so if make 30 in 3 it makes 4 in each group but it is 30 so you make the four in to a 0.4 or 1/3 which is 1.4.You can also multiply if you make 1.4 into 14 x 3 = 42 same as 1.4 x 30 = 42 so the answer is 1.4.

A population of 250 wild turkeys decreases by 2. 2% per year. At the end of 8 years, there will be approximately 209 turkeys in the population. Which function can be used to determine the number of turkeys, y, in this population at the end of t years?

Answers

We may calculate (1 - 0.022)8 as (1 - 0.022)8 = 0.878. The number of turkeys, y, in the population at the end of t years is obtained by substituting this value into the exponential decay formula and getting the following result: y = 250(0.878)t.

The equation y = 250(1 - 0.022)t, where t is the number of years, may be used to calculate the number of turkeys, y, in this population at the end of t years.

Using the exponential decay formula, A = P(1 - r)t, where A is the final amount, P is the beginning amount, r is the rate of decay in decimal notation, and t is the duration in years, we may arrive at this function.

If we substitute the values provided, we get: 209 = 250(1 - 0.022)^8

We may calculate (1 - 0.022)8 as (1 - 0.022)8 = 0.878.

This value may be substituted into the exponential decay formula to obtain the number of turkeys, y, in the population at the end of t years: y = 250(0.878)t.

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what is the value of the expression 9 (5) - X / Y when x= 15 and y= 3
a 5
b 10
c 15
d 20

Answers

Answer:

9(5)-/y

9(5)-15/3

45-15/3

45-5

40

i need help please help me

Answers

According the question given above  the value of n is 21.

What is simplification?

To simplify simply means to make anything easier. In mathematics, simplifying an equation, fraction, or problem means taking it and making it simpler.

Calculations and problem-solving techniques simplify the issue. The act of substituting a complex mathematical expression with a simpler counterpart is known as simplification (usually shorter).

Here, we have

Given : 7 = n/3

we have to find the value οf n.

We apply simplification here and we get

7 = n/3

n = 7×3

n = 21.

Hence, the value οf n is 21.

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List all the outcomes when rolling a fair six-sided die. a. What is the probability of getting a 1, 3, or a 6? (ALL ANSWERS SHOULD BE IN FRACTION FORM) b. What is the probability of getting a number less than 5? (ALL ANSWERS SHOULD BE IN FRACTION FORM)

Answers

Answer:

The outcomes when rolling a fair six-sided die are: 1, 2, 3, 4, 5, and 6.

a. The probability of getting a 1, 3, or a 6 is 3/6 or 1/2.

b. The probability of getting a number less than 5 is 4/6 or 2/3.

Identify the function in standard form. 3x 2 + 6x - 12 = 0 3x 2 + 2x + 10 = 0 5x 2 - 10x + 5 = 0 2x 2 - 4x + 6 = 0

Answers

All of these equations are quadratic equations in standard form, where the highest power of x is 2. The standard form of a quadratic equation is:

ax² + bx + c = 0.

What is quadratic equation?

it's a second-degree quadratic equation which is an algebraic equation in x. Ax² + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term, is the quadratic equation in its standard form. A non-zero term (a 0) for the coefficient of x² is a prerequisite for an equation to be a quadratic equation.

The functions in standard form are:

3x² + 6x - 12 = 0

3x² + 2x + 10 = 0

5x² - 10x + 5 = 0

2x² - 4x + 6 = 0

All of these equations are quadratic equations in standard form, where the highest power of x is 2. The standard form of a quadratic equation is:

ax² + bx + c = 0

where a, b, and c are constants and a ≠ 0.

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Divide 81 into scale 2:1

Answers

Answer:

Below

Step-by-step explanation:

You want to divide 81 into (2+1 = 3) parts

   81 / 3 = 27   for each part

    2 parts would be  2 * 27 = 54    

          so 2:1    would be   54:27

There are 9 teams that are numbered respectively from 1 to 9. Each team member has the group number printed on his/her shirt and each team cannot have more team members then its number. Armen started to add up all the odd numbers he saw on the shirts and asked David to add up all the even ones. What is the greatest possible difference between David's results and Armen's

Answers

The greatest possible difference between David's result and Armen's result is 5.

Let's first consider the maximum number of odd shirts Armen can count. Since there are only 5 odd numbers between 1 and 9, the maximum number of odd shirts Armen can count is 1+3+5+7+9 = 25.

Now, let's consider the maximum number of even shirts David can count. Since there are only 4 even numbers between 1 and 9, the maximum number of even shirts David can count is 2+4+6+8 = 20.

Therefore, the greatest possible difference between David's result and Armen's result is

= 25 - 20

Subtract the numbers

= 5

The maximum difference occurs when Armen counts all 5 odd shirts and David counts all 4 even shirts.

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What is the monthly periodic rate on a loan with an APR of 20.3%

Answers

The monthly periodic rate with APR 20.3% is 1.69%

What is APR?

APR is also known as Annual Payment Rate. And it is the cost of your mortgage credit as a yearly rate.

Annual Percentage Rate is typically higher than your interest rate because it includes your interest rate plus certain fees, such as lender and mortgage broker fees, based on the specific characteristics of your loan.

Monthly Interest Payment means the amount of interest paid on a Payment Date for the preceding Interest Period based on interest calculated for such preceding Interest Period at the Monthly Interest Rate.

If the Annual Percentage Rate is 20.3% and there are 12 months on a year , the monthly interest = 20.3/12 = 1.69 %

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i need help with thiss

Answers

The only true statement in the following equation are B and D.

How to find true statement?

A. When the bacteria population reaches 900, 12 hours have passed since the colony was placed on the petri dish.

To check this statement, we can use the formula for exponential growth:

P(t) = P0 * [tex]3^{(t/6)[/tex]

Where P(t) is the population at time t, P0 is the initial population, and t is the time in hours.

If P(t) = 900, we can solve for t:

900 = [tex]100 * 3^{(t/6)[/tex]

9 = [tex]3^{(t/6)[/tex]

ln(9) = (t/6) * ln(3)

t = 6 * ln(9) / ln(3) ≈ 12.68

So, it takes approximately 12.68 hours for the population to reach 900. Therefore, statement A is false.

B. Three hours after the colony is placed on the petri dish, there are 200 bacteria.

Using the formula above with t=3:

P(3) = [tex]100 * 3^{(3/6) = 200[/tex]

So, statement B is true.

C. Three hours after the colony is placed on the petri dish, there are about 173 bacteria in the colony.

Using the formula above with t=3:

P(3) = [tex]100 * 3^{(3/6) = 200[/tex]

So, statement C is false.

D. In the first hour the colony is placed on the petri dish, the population grows by a factor of [tex]$3^{\frac{1}{6}}$[/tex]

Using the formula above with t=1:

P(1) = [tex]100 * 3^(1/6)[/tex]

So, the population after 1 hour is 100 times the sixth root of 3. We can write this as:

P(1) = [tex]100 * (3^(1/6)) = 100 * 3^{\frac{1}{6}}[/tex]

Therefore, statement D is true.

E. Between 8 a.m. and 9 a.m., the population grows by a factor of [tex]$3^{\frac{2}{3}}$[/tex]

Between 7 a.m. and 8 a.m., the population grows by a factor of 3. Then, between 8 a.m. and 9 a.m., it grows by another factor of 3. So, between 7 a.m. and 9 a.m., the population grows by a factor of [tex]3^2[/tex] = 9. Taking the sixth root of 9 gives:

[tex](3^2)^(1/6) = 3^(1/3) = 3^{\frac{2}{6}} = 3^{\frac{1}{3}}[/tex]

So, the population between 8 a.m. and 9 a.m. grows by a factor of [tex]3^(1/3)[/tex]. Therefore, statement E is false.

In summary, the true statements are B and D.

We can employ the AC approach to factor the quadratic expression seen in the image. To achieve -6 * -15 = 90, we first multiply the coefficients of the first and last terms. The middle term's coefficient, which is -9, is then shown to be two factors of 90. Since -6 * -15 = 90 and -6 + (-15) = -21, which is the same as -9 when we factor out the GCF of 3, these factors are -6 and -15:

[tex]x^2 - 9x - 90 = (x - 15)(x + 6)[/tex]

As a result, the quadratic expression's factored form is (x - 15)(x + 6).

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The angle of elevation from the spot where a basketball player is standing up to the

top of a 10ft high hoop is 25 degrees. How far is the player from the base of the hoop

(to the nearest hundredth of a foot)?

Answers

If the angle of elevation from the spot where a basketball player is standing up to the top of a 10ft high hoop is 25 degrees, the player is approximately 21.45 feet away from the base of the hoop.

To solve this problem, we can use the trigonometric function tangent, which relates the opposite side of a right triangle to its adjacent side, using the angle of elevation:

tan(25 degrees) = opposite / adjacent

where the opposite side is the height of the hoop (10 feet), and we need to find the adjacent side, which is the distance from the player to the base of the hoop.

To isolate the adjacent side, we can rearrange the equation:

adjacent = opposite / tan(25 degrees)

adjacent = 10 / tan(25 degrees)

Using a calculator, we can find that tan(25 degrees) is approximately 0.4663:

adjacent = 10 / 0.4663

adjacent ≈ 21.45 feet

We round to the nearest hundredth of a foot, which gives us the final answer of 21.45 feet.

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100 pts and brainlist for SIMPLE math problem

Answers

Stockton lake lost the least amount of water.

What is Denominator?

In mathematics, the denominator is the bottom number in a fraction that indicates the number of equal parts into which a whole is divided.

To compare the amount of water lost by each lake, we need to express the amounts lost in the same units. One way to do this is to find a common denominator for the fractions and percentages involved.

Lake Jensen lost 5/6 of its water, which can be expressed as a fraction with a common denominator of 300:

5/6 = 250/300

Lake Parlow lost 85% of its water, which can be expressed as a fraction with a denominator of 100:

85% = 85/100 = 255/300

Lake Stockton lost 246/300 of its water, which is already in terms of a common denominator of 300.

Now we can compare the amounts lost directly:

Lake Jensen lost 250/300 of its water

Lake Parlow lost 255/300 of its water

Lake Stockton lost 246/300 of its water

To determine which lake lost the least amount of water, we need to find the smallest fraction among these three.

We can see that Lake Stockton lost the least amount of water, since 246/300 is smaller than both 250/300 and 255/300. Therefore, Lake Stockton lost the least amount of water.

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What does it mean to construct a triangle inscribed in a circle? (what does the word inscribed mean?)

Answers

Answer: A geometric figure which touches only the sides (or interior) of another figure.

Step-by-step explanation:

its inside but does not go past the innner edges

what is this question for math need help

Answers

Answer:

A

Step-by-step explanation:

The answer is 2x+2y+2 which is A

Answer: I think its B but I'm not quite sure

Step-by-step explanation:

The ordered pair (a,b) satisfies the inequality y

Answers

Answer:

If you add 5 to a, it will be greater than b

Step-by-step explanation:

i got it right

A certain company's main source of income is selling socks.

The company's annual profit (in millions of dollars) as a function of the price of a pair of socks (in dollars) is modeled by:

P(x)=−3(x−5) ^2+12

What is the maximum profit that the company can earn?

____ million dollars

Answers

If the company's annual profit (in millions of dollars) as a function of the price of a pair of socks (in dollars) is modeled by P(x)=−3(x−5) ^2+12, the maximum profit is $87 million.

The given profit function is in the form of a quadratic equation with a negative coefficient of the squared term. This means that the graph of the function is a downward-facing parabola, and the vertex of this parabola represents the maximum value of the function.

To find the vertex, we need to convert the given function into vertex form:

P(x) = -3(x - 5)^2 + 12

= -3(x^2 - 10x + 25) + 12

= -3x^2 + 30x - 63

Completing the square, we get:

P(x) = -3(x - 5)^2 + 12 + 75

= -3(x - 5)^2 + 87

The vertex of this parabola is at the point (5, 87), which represents the maximum profit the company can earn.

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Mr. Shoaf had a birthday a couple weeks ago and his mom took him out to dinner.

The total bill was $76.55. If there was a 5% sales tax and she tipped 25%, what was the total Mr. Shoaf’s mom paid for dinner?

She paid---------------------------------- dollars for the birthday dinner.

Answers

The birthday supper cost $94.73 and also the tax rate is $72.72 and was paid by Mr. Shoaf's mother.

What distinguishes VAT from sales tax?

A flat charge called valuation tax (VAT) is imposed on a purchase. It resembles a sales tax in the some ways, but unlike with a state taxes, the consumer pays the entire amount due to the government at the moment of sale.

What does Dutch VAT mean?

Value added tax is levied by the Dutch government on all products and services. VAT is added by businesses to the sales price to determine the final amount that customers pay. Businesses must pay taxes to the Customs and Tax Administration when goods are sold.

Cost of the meal [tex]= 76.55 -[/tex] (5% of 76.55)

Cost of the meal [tex]= 76.55 - 3.83[/tex]

Cost of the meal [tex]= 72.72[/tex]

calculate tip,

Tip = 25% of the cost of the meal

Tip [tex]= 0.25 *72.72[/tex]

Tip [tex]= 18.18[/tex]

calculate the total amount paid

Total amount paid = cost of the meal + sales tax + tip

Total amount paid [tex]= 72.72 + 3.83 + 18.18[/tex]

Total amount paid [tex]= 94.73[/tex]

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prove that (sec theta + tan theta - 1)(sec theta - tan theta + 1) = 2tan theta

Answers

Answer:

(secΘ+tanΘ-1)(secΘ-tanΘ+1)

=sec²Θ-secΘtanΘ+secΘ+secΘtan-tan²Θ+tanΘ-secΘ+tanΘ-1

=2tanΘ+(sec²Θ-tan²Θ)-1

=2tanΘ+1-1

=2tanΘ

Bianca said that if k is a real number, then the solution set of the compound inequality xk is all real numbers. Do you agree? Justify your argument.

Answers

Well, I do agree that if k is a real number, then the compound inequality xk's solution set contains only real numbers.

A sentence with two inequality statements connected by the words "or" or "and" is referred to as a compound inequality. The word "and" indicates that both claims in the compound sentence are true at the same time. It occurs when the multiple statement's solution sets overlap or intersect. Compound inequalities are those that have the conjunctions "and" or "or" between them. It should be understood that plimb[/[/ofs (Ors Or/ Orss ultras "is larger than -2 and less than or equal to 5" should be translated as 2 x 5. x is greater than or equal to 3 or equal to -4, or "x 3." You'll observe that each of these differences has two inequality signals. Inequality that is compounded by two or more factors.

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Round this number to the
nearest ten:
801

Answers

Answer:

800

Step-by-step explanation:

the answer is 800 as 1 rounds down

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