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Ksenya-84 [330]
4 years ago
15

The cylinder shown has a radius of 3 inches. The height is three times the radius. Find the volume of the cylinder. Round your s

olution to the nearest tenth

Mathematics
1 answer:
MrRa [10]4 years ago
3 0

Answer:

254.5 Inches Cubed

Step-by-step explanation:

Formula for Finding the Volume of a Cylinder: V=\pi r^2h

The radius is 3 inches.

r=3

The height is three times the radius.

Multiply the radius by three to get the height.

h=3*3\\h=9

The height is 9 inches.

Use the formula to find the volume.

\pi (3)^29= \pi (9)9=81\pi

The exact volume is 81\pi inches cubed.

81 * \pi ≈ 254.47

254.47 ≈ 254.5

The volume of the cylinder should be about 254.5 inches cubed.

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The diameter of the base of right cone 12 cm . The total surface area of the cone is 306 cm^2
inn [45]
           A = πr² + πrl
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  306.00 = 3.14(36) + 3.14(6l)
  306.00 = 113.04 + 18.84l
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7 0
3 years ago
Select the correct steps for factoring the polynomial 5x^3-40
erastovalidia [21]

Answer:

5 (x-2) (x²+2x+4)

Step-by-step explanation:

Stating with 5x³ - 40, the want to simplify the x part by extracting the common factor, so

5x³ - 40 = 5(x³-8)

Now to factor x³-8, we can rewrite it in the format x³-2³, right?

And there's a formula to obtain x³-y³, which is the Difference of Cubes formula that goes like this:  x³-y³= (x-y)(x²+xy+y²)

So, we apply this formula replacing the y with our value of 2:

x³-2³= (x-2)(x²+2x+2²) = (x-2)(x²+2x+4)

So, overall, we have 5x³ - 40 = 5 (x-2) (x²+2x+4)

7 0
3 years ago
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Katen [24]
I believe the answer is the first one
7 0
3 years ago
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What number is the missing numerator? 16,16,2
Lelu [443]
Here is your answer:

Your answer is 8:

Reason:

8÷2=16
16÷8=2

Which makes 8 your answer.

Hopes this Helps!
8 0
3 years ago
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