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yanalaym [24]
3 years ago
14

PLEASE HELP!!! Giving brainlist

Mathematics
2 answers:
stellarik [79]3 years ago
8 0

Answer:

A. 5

B. -28

C. 10.4

D. -0.875

E. I don't know I'm sorry :<

F. 8,003

I hope it helped!

~flipohrama

kkurt [141]3 years ago
3 0

Answer:

5 (-5)

28 (-28)

-10.4 (10.4)

0.875 (-0.875)

0 (-0)

8,003 (-8,003)

Step-by-step explanation:

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What is an equation of the line that passes through the points (-4,-2) and (-8,3) ??
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Step-by-step explanation:

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2 years ago
A sphere and a cylinder have the same radius and height. The volume of the cylinder is 21m. what is the volume of the sphere.​
Goshia [24]

Answer:

The volume of the sphere is 14m³

Step-by-step explanation:

Given

Volume of the cylinder = 21m^3

Required

Volume of the sphere

Given that the volume of the cylinder is 21, the first step is to solve for the radius of the cylinder;

<em>Using the volume formula of a cylinder</em>

The formula goes thus

V = \pi r^2h

Substitute 21 for V; this gives

21 = \pi r^2h

Divide both sides by h

\frac{21}{h} = \frac{\pi r^2h}{h}

\frac{21}{h} = \pi r^2

The next step is to solve for the volume of the sphere using the following formula;

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

Divide both sides by r

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

Expand Expression

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

Substitute \frac{21}{h} = \pi r^2

\frac{V}{r} = \frac{4}{3} * \frac{21}{h}

\frac{V}{r} = \frac{84}{3h}

\frac{V}{r} = \frac{28}{h}

Multiply both sided by r

r * \frac{V}{r} = \frac{28}{h} * r

V = \frac{28r}{h} ------ equation 1

From the question, we were given that the height of the cylinder and the sphere have equal value;

This implies that the height of the cylinder equals the diameter of the sphere. In other words

h = D , where D represents diameter of the sphere

Recall that D = 2r

So, h = D = 2r

h = 2r

Substitute 2r for h in equation 1

V = \frac{28r}{2r}

V = \frac{28}{2}

V = 14

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3 years ago
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Complete question is:

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borishaifa [10]
If  5 = 6 , than 4 =7

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