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3 years ago

6

I need this for today someone can help me!!!

1 answer:

kirill [66]3 years ago

4 0

Use pythagorean theorem
a^2 + b^2 = c^2

2^2 + 5^2 = 29

c^2 = 29

The distance from the school to the basketball courts is C, so to get C on its own we need to square root 29, which gives us 5.385.....

We need to round this to the nearest mile, so Josh would need to walk 5 miles. Hope this helps!!

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Item 16 A sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. What is the difference of the vol

Zigmanuir [339]

Answer:

$672\pi \text{ cm}^3$ .

Step-by-step explanation:

We have been given that a sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. We are asked to find the difference of the volumes of the spheres.

We will use volume formula of sphere to solve our given problem.

$\text{Volume of sphere}=\frac{4}{3}\pi r^3$ , where r is radius of sphere.

The difference of volumes would be volume of larger sphere minus volume of smaller sphere.

$\text{Difference of volumes}=\frac{4}{3}\pi(\text{8 cm})^3-\frac{4}{3}\pi(\text{2 cm})^3$

$\text{Difference of volumes}=\frac{4}{3}\pi(512)\text{ cm}^3-\frac{4}{3}\pi(8)\text{ cm}^3$

$\text{Difference of volumes}=\frac{4}{3}\pi(512-8)\text{ cm}^3$

$\text{Difference of volumes}=4\pi(168)\text{ cm}^3$

$\text{Difference of volumes}=672\pi\text{ cm}^3$

Therefore, the difference between volumes of the spheres is $672\pi \text{ cm}^3$ .

3 0

4 years ago

Can someone help me find the answer to the following?

Ludmilka [50]

To solve this, we'll use Euler's Polyhedral formula.

This formula states that in any polyhedron, the number of vertices V, faces F, and edges E, satisfy:

$V+F-E=2$

If we solve for the edges E, we'll get:

$V+F-2=E$

Using the data given,

$\begin{gathered} V+F-2=E \\ \rightarrow6+8-2=E \\ \rightarrow12=E \end{gathered}$

We get that the polyhedron would have 12 edges

5 0

1 year ago

Select the equivalent expression. (8^-5/2^-2)^-4 = ?

Alchen [17]

Answer:

C. 8^20/2^8

Step-by-step explanation:

(8^5/2²)^4

8^20/2^8

7 0

3 years ago

Twelve less than seven times a number is 16

Anna11 [10]

4 would be the only possible answer bc 7 x 4 = 28 and 28 - 12 = 16.

8 0

3 years ago

How many zeros are in 30,000

marissa [1.9K]

There are 4 zeros in 30,000.

4 0

4 years ago