a poll for a statewide election has a margin of error of percentage points. how many voters should be sampled for a confidence interval? round up to the nearest whole number.

Answer:

600

Step-by-step explanation:

SO you would have to first have the surface area of the cube which is 25 for each side so 25 x 6 = 150

Then you find the surface area for the other sides and It is 4 x 5 divided by two for each triangle on the side,  so that would be 20 and you multiply then 6.4 x 5 to equal 32 for the rectangle. The last part is the bottom and it is 4 x 5 again which is 20 so then you add them all up but im not sure.

9 and -9

Step-by-step explanation:

The distance between both are 18, and they are opposites because one is positive, and the other is negative.

Answer:

We can find the common difference by subtracting the first term from the second term, or the second term from the third term:

27 - 3 = 24

So the common difference is 24.

To find the missing term, we can add the common difference to the second term:

27 + 24 = 51

Therefore, the missing term in the sequence is 51.

The complete sequence is:

3, 27, 51, ...

Answer:

Quotient=23 and remainder=14

1st method:-

\( \frac{ - 40}{5} \) can also be written as\( - 40 \times \frac{1}{5} \)

We know that anything we multiply ( except 0 ) with a negative number , the product is also a negative number.

2nd method:-

\( \frac{ - 40}{5} = - 8\) We can write - 8 as \(8 \times ( - 1)\)

We know that anything we multiply ( except 0 ) with a negative number , the product is also a negative number.

The correct answer is d. standard error.the standard deviation of a sampling distribution of sample means is referred to as the standard error.

The standard deviation of a sampling distribution of sample means is commonly referred to as the standard error. It represents the variability or dispersion of the sample means around the population mean. The standard error quantifies the precision of the sample mean as an estimate of the population mean.

The sampling distribution of sample means is a theoretical distribution that shows the distribution of sample means obtained from multiple random samples of the same size taken from a population. It is an essential concept in inferential statistics, particularly when estimating population parameters.

The standard error is calculated by dividing the standard deviation of the population by the square root of the sample size. Mathematically, it is represented as:

Standard Error = (Population Standard Deviation) / √(Sample Size)

The standard error measures the average amount of deviation or error between the sample means and the population mean. A smaller standard error indicates less variability and greater precision in estimating the population mean. On the other hand, a larger standard error implies more variability and less precision.

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Answer:

D   √( 5 • 6)

Step-by-step explanation:

√( 5 •6)

√30 ≈ 5.4772255751

The average mark that Sally need on the next two tests to have an average of 80 for all of the tests is 88.

Since the average mark on the first 4 tests Sally took was 76. The total marks will be:

= 76 × 4

= 304

Since she wants an average of 80 on 6 test, the total will be:

= 80 × 6

= 480

Therefore, the average needed in the two tests will be:

= (480 - 304) / 2

= 88

The average is 88.

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See attachment for math work and answer.

The equation is simplified as \(x^{16}=x^{16}\).

The given equation is \(x^{12} . \ x^{4} = x^{8} . \ x^{8}\).

We need to simplify and explain the equation.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Use the exponent rule \(a^m . \ a^n=a^{m+n}\) to simplify the given equation.

Now, \(x^{12} . \ x^{4} = x^{8} . \ x^{8}\)

⇒ \(x^{12+4}=x^{8+8}\)

⇒ \(x^{16}=x^{16}\)

The exponents of both the sides of equation are the same.

Therefore, the equation is simplified as \(x^{16}=x^{16}\).

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Step-by-step explanation:

the general slope-intercept form is

y = ax + b

a is the slope, b is the y-intercept.

we need to transform x + 2y = 6, so that we end up with y being all alone on one side, and the rest on the other side.

x + 2y = 6

2y = -x + 6

y = -x/2 + 6

Answer:

v = 130

Step-by-step explanation:

substitute the given values for u, a and t into the equation

v = 32 + ( 9.8 × 10) = 32 + 98 = 130

Answer:

8 cups of water

Step-by-step explanation:

63/7=9

72/9=8

The variance of a distribution of means of samples of more than one is A) smaller than the original population variance.

When considering the distribution of means of samples, the central limit theorem states that as the sample size increases, the sampling distribution approaches a normal distribution regardless of the shape of the population distribution. Additionally, the standard error of the mean decreases as the sample size increases.

The variance of a population is denoted by σ^2.

The variance of the distribution of sample means, also known as the sampling distribution, is denoted by σ^2/N, where N is the sample size.

As the sample size (N) increases, the denominator increases, leading to a smaller value for the variance of the distribution of sample means (σ^2/N). Thus, the variance of the distribution of means of samples is smaller than the original population variance.

The variance of a distribution of means of samples of more than one is smaller than the original population variance. This is due to the central limit theorem and the decrease in standard error as the sample size increases.

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The arithmetic expressions are solved and answered below -

5 - 9 = - 4

8 - 8 = 0

- 1 + 12 = 11

- 12 + 12 = 0

- 2 + 4 + 3 = 5

- 4 + 3 + 2 - 1 = - 2 + 2 = 0

In mathematics, an expression or mathematical expression is a combination of terms both variables and constants. For example -

2x + 4y + 5z

4y + 2x

Given are the expressions as given in the questions.

{a} -

5 - 9 = - 4

{b} -

8 - 8 = 0

{c} -

- 1 + 12 = 11

{d} -

- 12 + 12 = 0

{e} -

- 2 + 4 + 3

5

{f} -

- 4 + 3 + 2 - 1 = - 2 + 2 = 0

Therefore, the arithmetic expressions are solved and answered below -

5 - 9 = - 4

8 - 8 = 0

- 1 + 12 = 11

- 12 + 12 = 0

- 2 + 4 + 3 = 5

- 4 + 3 + 2 - 1 = - 2 + 2 = 0

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{Complete question -

Calculate the following:

a) 5-9

b) 8-8

c) -1 + 12

d) -12 + 12

e) -2 +4+3

f) -4-3+2-1}

Answer:

50 degrees

Step-by-step explanation:

Alternate interior angles are equal

Answer:

the answer is 50 dg I took the test lol my explanation is that the line is going obtuse

Answer:

Step-by-step explanation:

it is an ellipse.

The graph of the ellipse (x²/3²) + (y²/2²) = 1 is given in the image below.

An ellipse is a closed curve in a plane that is symmetric around two perpendicular lines known as the ellipse's axis.

The given equation is in the standard form of the equation of an ellipse centered at the origin with its major axis on the x-axis and its minor axis on the y-axis:

(x²/3²) + (y²/2²) = 1

The square of the semi-major axis (a) is 3² = 9, so the semi-major axis is a = 3.

The square of the semi-minor axis (b) is 2² = 4, so the semi-minor axis is b = 2.

Therefore, the characteristic of the given ellipse is:

a²- b² = 9 - 4 = 5

So the characteristic of the ellipse is 5.

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la respuesta para la ecuación es -5

He also added lettuce, tomatoes, and cheese. Kenneth also made sure to put plenty of condiments like mayonnaise and mustard on each sandwich.

Number is a mathematical entity used to represent a computer magnitude it can be symbol or a combination of simple you should in order to take quantity such as the two, five, seven, three or eight number are used to verify the context including counting measuring and computing.


Kenneth's family was excited to get to the beach. When they arrived, they set up their umbrellas and beach chairs and found a spot to settle down. After they were all settled, Kenneth passed out the sandwiches he had made. Everyone was satisfied with the delicious sandwiches Kenneth had created.

Kenneth's family enjoyed their day at the beach. They swam in the ocean, built sandcastles, and played volleyball. They even laid out and got a nice tan. As the day got hotter, Kenneth's family got hungrier. Fortunately, they still had the sandwiches Kenneth had made. Everyone was thankful for the delicious sandwiches that Kenneth had prepared for them.

After a fun day at the beach, Kenneth's family packed up their things and headed home. Kenneth was happy that he could provide for his family and make their day even better. He was grateful for the opportunity to make the sandwiches for his family and make their day at the beach even more enjoyable.

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Answer:

Look at step by step for answer.

Step-by-step explanation:

9.  5 + 2 + 7= 14

10. 16 + 2 - 7= 11

11.  7 - 2 + 1= 6

12.  9(2) - 7= 11

13. 7(7) - 2= 47

14. 4(7) + 2= 30

15. 12(2) + 7= 31

16. 22 + 2 - 7= 17

Answer:

y = -2x - 7

Step-by-step explanation:

The general formula of a linear graph is y = mx + c

where m is the gradient and c is the y-intercept

The slope (aka gradient) is -2, hence m= -2

and the y-intercept is -7, hence c = -7

Therefore, y = -2x + (-7)

                  y = -2x - 7

Answer:

Step-by-step explanation:

m = -2

y-intercept = -7

In y=mx+b (slope intercept form) ,

m = slope

b =y-intercept

Substitute the given values into  slope intercept form

\(y = -2x -7\)

Answer:

There will be 2,547 bacteria after 7 days.

Step-by-step explanation:

\(87*1.62^{7} =2547\)

After 7 days there will be 2547.55 cells in a petri dish if the number of fungi in a petri dish on the first day was 87 cells. If the number of fungi increases at a rate of 62% per day.

It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent y = a×

where a is a constant and a>1

We have:

The number of fungi in a petri dish on the first day was 87 cells. If the number of fungi increases at a rate of 62% per day.

As we know,

The standard form of the exponential growth equation:

y = a(1 + r)×

Here,

a is the starting value:

a = 87 cells

r = 62% = 0.62

x = 7 days

y = 87(1 + 0.62)⁷

After solving:

y = 2547.55 cells

Thus, after 7 days there will be 2547.55 cells in a petri dish if the number of fungi in a petri dish on the first day was 87 cells. If the number of fungi increases at a rate of 62% per day.

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Answer:

A.   112 units^2

Step-by-step explanation:

64 + 32 + 12 + 4 = 112

Answer:

Vertical angles are a pair of opposite angles formed by intersecting lines. In the figure, ∠1 and ∠3 are vertical angles. So are ∠2 and ∠4 . Vertical angles are always congruent .

Step-by-step explanation:

i hop this halp

26 hours because you subtract 40 from 950 since the painter needs 40 for a ladder then you get 910.then you divide (910\35)... that how you get 26

ladder rental: $40

Charge per hour: $35

x=hours

cost=fixed cost + (charge per hours  x hours)

Replacing with the values given:

y=40+35x

or

y=35x+40

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The criterion that is least likely to be used in choosing bins (classes) in a frequency distribution is personal preference or subjective judgment.

When constructing a frequency distribution, it is important to consider objective criteria based on the nature of the data and statistical principles. Common criteria used for choosing bins include the range of the data, the desired number of bins, the shape of the data distribution, and the purpose of the analysis. These criteria help ensure that the bins effectively capture the variation in the data and provide meaningful insights. Personal preference or subjective judgment, on the other hand, may introduce bias and lack objectivity in determining the bin boundaries. It is essential to rely on objective criteria and statistical guidelines to make informed decisions when choosing bins for a frequency distribution.

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the optimal solution to maximize Z is x1 = 25 and x2 = 0, with Z = 3000.

To solve the given linear programming model graphically, we need to plot the feasible region and identify the corner points to find the optimal solution. Here's the step-by-step process:

1. Plot the constraints:

  - Plot the line x1 = 40 (vertical line at x1 = 40).

  - Plot the line x2 = 10 (horizontal line at x2 = 10).

  - Plot the line 20x1 + 10x2 = 500 (which can be rewritten as 2x1 + x2 = 50).

  - Shade the feasible region that satisfies all the constraints.

2. Identify the corner points:

  - Determine the coordinates of the corner points where the boundary lines intersect.

3. Evaluate the objective function:

  - Calculate the value of the objective function Z = 120x1 + 80x2 for each corner point.

4. Determine the optimal solution:

  - Select the corner point that maximizes the objective function Z.

Here's the graphical representation of the feasible region:

      |

 40   |           C

      |          /

      |         /

      |        /

      |       /

      |      /

      |     /    Feasible Region

 10   |_____/_________________

      0   10  20  30  40  50

            0`

The corner points of the feasible region are:

A: (0, 0)

B: (0, 10)

C: (25, 0)

D: (20, 5)

Now, we evaluate the objective function Z = 120x1 + 80x2 for each corner point:

Z(A) = 120(0) + 80(0) = 0

Z(B) = 120(0) + 80(10) = 800

Z(C) = 120(25) + 80(0) = 3000

Z(D) = 120(20) + 80(5) = 2400

From the above calculations, we can see that the maximum value of Z occurs at point C: (25, 0).

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Answer:

The answer is 19

Step-by-step explanation:

add like terms which are 86 32 and 5 and you get 123 subtract that from 180 and get 57 divide 57 by 3 and get 19

Answer:

The answer is 19

Step-by-step explanation: