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3 years ago

What is the surface area of the cylinder with height 5 ft and radius 3 ft? Round your answer to the nearest thousandth

Mathematics

1 answer:

BabaBlast [244]3 years ago

8 0

Answer:

150.8ft²

Step-by-step explanation:

A=2πrh+2πr2=2·π·3·5+2·π·32≈150.79645ft²

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Use the arc length formula and the given information to find r.

jek_recluse [69]

Answer:

Step-by-step explanation:

The thing with the arc length formula, s = rt, is that t is the angle in radians. Ours is in degrees, so we have to change it:

36 × $\frac{\pi }{180}=\frac{\pi }{5}$

So the formula we use to solve for r is:

$12=\frac{\pi }{5}r$

Multiply both sides by 5 over pi to get that

$r=\frac{60}{\pi } cm$

3 0

4 years ago

Raymond works for an architecture firm. His company has a contract to design a building on a rectangular plot of land that has a

yKpoI14uk [10]

Answer:

1286 meters long

Step-by-step explanation:

421,808 divided by the width of the plot gives you 1,286 meters for the width.

5 0

3 years ago

A construction company orders 12 tons of pea gravel how many pounds of pea gravel do they order

poizon [28]

Each ton is equal to 2,000 pounds, therefore each ton (12) times the number of pounds per ton (2,000) is 24,000 pounds! Hope this helps!!

6 0

4 years ago

Can someone help and explain

ruslelena [56]

Answer:

$\frac{1}{2}$ blocks

Step-by-step explanation:

If it takes 15 minutes to walk 7 1/2 blocks, it should be 15:17 $\frac{1}{2}$

The left side is minutes and the right side is the number of blocks

15:17 $\frac{1}{2}$

1: ? Since we are figuring out how many blocks he can walk in a minute, the left side is 1 and the right side is a question mark because we have not figured it out yet.

15: 17 $\frac{1}{2}$ Divide by 15 on both sides because that is the "distance" from 15 to1

1 : ?

1: $\frac{1}{2}$

So the answer is $\frac{1}{2}$

5 0

3 years ago

Maria Cardenas had a policy with a $500 deductible which paid 80% of her covered charges less deductible. She had medical expens

Mariulka [41]

A.) The insurance company's payment is 80% of the total minus the $500 deductible, so:
(12500 - 500) * .8 = 9600

B.) To find the Copay, you do almost the same thing:
(12500 - 500) * .2 = 2500

C.) Mary's Total Cost: 2500 + 500 = 3000.00

4 0

3 years ago