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3 years ago

PLEASE PLEASE HELP ME ! THANK YOU

1 answer:

3 0

A squared + b squared = c squared
12x12= 144
35x35 = 1225
144+1225 = 1369
c squared = 1369
Square root of 1369 = 37

37 miles.

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All swimming equipment is on sale with a 30% discount. A snorkeling set regularly sells

kupik [55]

Answer:

Step-by-step explanation:

50 * .30=15

4 0

2 years ago

ben is making trail mix for 25 people. each person will get 1/8 pound of trial mix. how much trail mix does ben need to make it

worty [1.4K]

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8 0

3 years ago

Find a solution to the equation 4(x + 7) = 38

yKpoI14uk [10]

Answer:

4(x+7)=38

4x+28=38

4x=38-28

4x=10

(divide by 4)

x=2whole number 2/4

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6 0

2 years ago

A storage tank will have a circular base of radius r and a height of r. The tank can be either cylindrical or hemispherical (ha

Neko [114]

Answer:

Volume: $\frac{2}{3}\pi r^3$

Ratio: $\frac{2}{9}r$

Step-by-step explanation:

First of all, we need to find the volume of the hemispherical tank.

The volume of a sphere is given by:

$V=\frac{4}{3}\pi r^3$

where

r is the radius of the sphere

V is the volume

Here, we have a hemispherical tank: a hemisphere is exactly a sphere cut in a half, so its volume is half that of the sphere:

$V'=\frac{V}{2}=\frac{\frac{4}{3}\pi r^3}{2}=\frac{2}{3}\pi r^3$

Now we want to find the ratio between the volume of the hemisphere and its surface area.

The surface area of a sphere is

$A=4 \pi r^2$

For a hemisphere, the area of the curved part of the surface is therefore half of this value, so $2\pi r^2$ . Moreover, we have to add the surface of the base, which is $\pi r^2$ . So the total surface area of the hemispherical tank is

$A'=2\pi r^2 + \pi r^2 = 3 \pi r^2$

Therefore, the ratio betwen the volume and the surface area of the hemisphere is

$\frac{V'}{A'}=\frac{\frac{2}{3}\pi r^3}{3\pi r^2}=\frac{2}{9}r$

6 0

3 years ago

How can you estimate 74.3 divided by 8

Greeley [361]

The answer of 74 divided by 8 hope this helps

7 0

3 years ago