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3 years ago

4. List two solids for which the formula V = Bh applies and 2 for which V = Bh does not apply.

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

6 0

Step-by-step explanation:

V = Bh applies for :

1. the volume of prism

2. the volume of cylinder

V = Bh doesnt apply for :

1. the volume of pyramid

2. the volume of cone

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A study done by researchers at a university concluded that 70 70% of all student athletes in this country have been subjected t

Alecsey [184]

Answer:

The margin of error is 0.0206 = 2.06 percentage points.

The 95% confidence interval for the proportion of all student athletes in this country have been subjected to some form of hazing is (0.6794, 0.7206).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , 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 $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 1900, \pi = 0.7$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The margin of error is:

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

$M = 1.96\sqrt{\frac{0.7*0.3}{1900}} = 0.0206$

The margin of error is 0.0206 = 2.06 percentage points.

The lower limit of this interval is:

$\pi - M = 0.7 - 0.0206 = 0.6794$

The upper limit of this interval is:

$\pi + M = 0.7 + 0.0206 = 0.7206$

The 95% confidence interval for the proportion of all student athletes in this country have been subjected to some form of hazing is (0.6794, 0.7206).

6 0

4 years ago

Find the perimeter of the figure below.

Vika [28.1K]

Answer:

P=50

Step-by-step explanation:

First use the formula for perimeter which is P = 2l + 2w. Then plug in to find your answer.

STEPS:

P = 2l + 2w

P=2(13)+2(12)

P=26+24

P=50

3 0

3 years ago

The product of 4 and a number b is 3/5 solve for b

Kay [80]

The easiest way to solve this is to write the words mathematically. You're told that the product of 4 and a number, b = 3/5.

That means:
4b (product of 4 and b) = $\frac{3}{5}$

To solve for b, you want to divide both sides by 4 to get the b by itself on the left of the equation:
$4b = \frac{3}{5}\\
 \frac{4b}{4} = \frac{\frac{3}{5}}{4}\\
b = \frac{3}{20}$

----

Answer: b = 3/20

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4 years ago

Give examples of where the cubic decimeter is used around us?

pogonyaev

Answer:

A unit of volume equal to that of a cube having sides each one decimetre in length, equal to 10-3 cubic metres and 1 litre. Commonly used in fluid measure and for engine sizes.

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3 years ago

The volume of a right rectangular prism is 7 1/2 cm³. The height of the prism is 2 1/4 cm.

Dmitrij [34]

Answer:

Step-by-step explanation:

To find the area of the base of the prism, you would first multiply 7 1/2 and 2 1/4, which would leave you with 16.875. Next, you would divide by 2, which gives you 8.4375. Rounding up, you would have the answer C.

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3 years ago