All categories

2 years ago

The following formula gives the volume V of a pyramid, where A is the area of the base and h is the height:

Mathematics

1 answer:

jeka942 years ago

3 0

You have to move everything to other side besides A
(h)v= 1/3 A
3(h)v=A
Your answer is A= 3hv

You might be interested in

Can you name all the factor pairs 0f 64 ?

kodGreya [7K]

$1 * 64 = 64 \\ 2 * 32 = 64 \\ 4 * 16 = 64 \\ 8 * 8 = 64$

6 0

2 years ago

Read 2 more answers

Which of the following sets of numbers could represent the three sides of a triangle?

san4es73 [151]

Answer:

To enable a set of three numbers to represent three sides of a triangle, sum of smaller two numbers must be greater than the largest number. Hence, only C can represent a triangle.

⚪ The sum of the measures of the interior angles of a triangle in Euclidean space is always 180 degrees

<em><u>The answer is none</u></em>

8 0

2 years ago

You are paid $10.50/hr and work 15 hours how much will you be paid

guajiro [1.7K]

For 15 Hours Of Work, You Will Be Paid $157.50. Just Multiply 10.50 By 15 And You Got Your Answer.

7 0

2 years ago

Read 2 more answers

A teacher was interested in finding out whether a special study program would increase the scores of students on a national exam

bija089 [108]

Answer:

Check the explanation

Step-by-step explanation:

Going by the first attached image below we reject H_o against H_1 if obs. $T > t_{\alpha /2;n-1}$

here obs.T=1.879

$\therefore obs.T \ngtr 2.447=t_{0.025;6}$

we accept $H_o:\mu _{1}=\mu_{2}$ at 5% level of significance.

i.e there is no sufficient evidence to indicate that the special study program is more effective at 5% level of significance.

this problem is simillar to the previous one except the alternative hypothesis.

Let X_i's denote the bonuses given by female managers and Y_i's denote the bonuses given by male managers.

we assume that $X_i \sim N(\mu _{1},\sigma _{1}^{2}) Y_i \sim N(\mu _{2},\sigma _{2}^{2})$ independently

We want to test $H_0:\mu_{1}=\mu_{2} vs H_1:\mu_{1}\neq \mu_{2}$

define $D_i=X_i-Y_i , i=1(1)8$

now $D_i\sim N(\mu _{1}-\mu _{2}=\mu _{D},\sigma _{1}^{2}+\sigma _{2}^{2}=\sigma _{D}^{2}) , i=1(1)8$

the hypothesis becomes

$H_0:\mu_{D}=0 vs H_1:\mu_{D}\neq 0$

in the third attached image, we use the same test statistic as before

i.e at 5% level of significance there is not enough evidence to indicate a difference in average bonuses .

3 0

2 years ago

The perimeter of the tennis court is 228 feet. what are the dimensions of the court?

julsineya [31]

From a reliable source, the ratio between the width and the length of the tennis court is equal to 5:12. We let x be the common factor of the given ratio such that the width is equal to 5x and the length is equal to 12x.

The perimeter of the figure is calculated through the equation,
P = 2L + 2W
where P is the perimeter, L is the length, and W is the width.

Substituting the derived expressions to the equation above.

228 = (2)(12x) + 2(5x)
x = 114/17
The width and length are calculated below.
Width = (5)(114/17) = 570/17 ft = 33.53 ft
Length = (12)(114/17) = 1368/17 ft = 80.47 ft

Thus, the dimensions are approximately 33.53 ft and 80.47 ft.

7 0

2 years ago