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3 years ago

How to determine if polynomial is factoriable?

Mathematics

1 answer:

Andru [333]3 years ago

3 0

If you have a maybe text book look in there it may give you the answer

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Nth term of 4,10,16,12

enyata [817]

the 9th term for 4,10,16,12 is add 6

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3 years ago

How many cubes are needed to build the base of this structure?<br> A.6<br> B.3<br> C.5<br> D.4

melomori [17]

Answer: C.5

The answer is 5.

Why is there a twenty character minimum on brainly? what a stupid idea

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3 years ago

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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

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

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3 years ago

What is the area of the two plots of land combined if x=2?

belka [17]

Answer:

The Top Left square is your answer, 64pia^12

Step-by-step explanation:

A = (pi)r^2

A= (pi)(8a^6)^2

A = (pi)64a^12

A = 64pia^12

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2 years ago

-6a-4= -4 (1+7a) Solve for a.

soldi70 [24.7K]

Answer:

$a = 0$

Step-by-step explanation:

On the right side of the = multiply -4 through

$- 6a - 4 = - 4 - 28a$

add 28a and add 4 to both sides

$28a - 6a = 4 - 4$

$22a = 0$

divide both sides by 22

$a = 0$

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3 years ago

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