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3 years ago

Marcella divided 40.8 gallons of paint among 8 characters , how much paint is in each container

Mathematics

2 answers:

Sauron [17]3 years ago

8 0

Answer:

frac{40.8}{8}= 5.1

kkurt [141]3 years ago

4 0

$\frac{40.8}{8}= 5.1$

So there are 5.1<span> gallons of paint in each of the 8 containers.</span>

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11. D'(2.9) is the image of D after a reflection

algol [13]

Answer:

D(- 2, 9 )

Step-by-step explanation:

Under a reflection in the y- axis

a pont (x, y ) → (- x, y )

Given D'(2, 9 ) is the image of D, then

D(- 2, 9 ) ← are the original coordinates

Since D(- 2, 9 ) → D'(2, 9 )

4 0

3 years ago

What is the name of the point from which a dilation is drawn?

dedylja [7]

For this case, the first thing you should do is know that dilation is a transformation that is used<em> to lengthen or shorten a geometric figure. </em>

Geometric figures can be triangles, squares, circles, or any polygon.

There is a point on the plane, at which the dilation begins to be drawn.

This point on the plane is what we know as the center of dilation .

Answer:

B. the center of dilation

3 0

3 years ago

You have a square(40 inches by 24 inches) and reduce it to create the smaller box of 10 inches by 6 inches. What is the scale fa

Gnoma [55]

Answer:

4 inches

Step-by-step explanation:

40/24=10/6

40/10=4

24/6=4

(40/24)/(4/4)=10/6

(10/6)(4/4)=10/24

3 0

2 years ago

You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the

Vesna [10]

Answer:

A sample size of at least 1,353,733 is required.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

98% confidence level

So $\alpha = 0.02$ , z is the value of Z that has a pvalue of $1 - \frac{0.02}{2} = 0.99$ , so $Z = 2.327$ .

You would like to be 98% confident that you esimate is within 0.1% of the true population proportion. How large of a sample size is required?

We need a sample size of at least n.

n is found when M = 0.001.

Since we don't have an estimate for the proportion, we use the worst case scenario, that is $\pi = 0.5$

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.001 = 2.327\sqrt{\frac{0.5*0.5}{n}}$

$0.001\sqrt{n} = 2.327*0.5$

$\sqrt{n} = \frac{2.327*0.5}{0.001}$

$(\sqrt{n})^{2} = (\frac{2.327*0.5}{0.001})^{2}$

$n = 1353732.25$

Rounding up

A sample size of at least 1,353,733 is required.

5 0

3 years ago

Which of the following describes the decimal .3? Repeating decimal Terminating decimal Circulating decimals Repeating factor? Th

drek231 [11]

Answer:

Repeating decimal

Step-by-step explanation:

The bar over any number to the right of a decimal point denotes that the number is recurring. Meaning that if the bar (line) is over the number 3 in 0.3, the number 3 is being repeated infinitely. (0.333333333333333333....)

These types of decimals are known as repeating or recurring decimals.

Hope this helps!

4 0

2 years ago

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