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ladessa [460]
3 years ago
11

Hat is the surface area of a cylinder that has a volume if 785.4in3 and a radius of 5 in?

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
4 0

Answer:

  • A. 471.2 in²

Step-by-step explanation:

<u>Cylinder volume:</u>

  • V = πr²h

<u>Cylinder surface area:</u>

  • A = 2πr(r + h)

<u>Find h from the first equation:</u>

  • h = V/(πr²) = 785.4/(3.14*5²) = 10 in

<u>Find surface area:</u>

  • A = 2π(5)(5 + 10) = 471.23 in²

Correct choice is A

lys-0071 [83]3 years ago
4 0

Answer:

volume of cylinder=πr²h

785.4=22/7×5²×h

h=785.4×7/(22×25)=9.99=10in

Step-by-step explanation:

surface area of cylinder =2πr(r+h)=2π×5(5+10)=

471.238898038in²

A 471.2in2 is your answer.

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After dinner 1-3 of the corn bread is left suppose 2 friends want to share it equally what fraction names how much of the whole
Ad libitum [116K]

Answer:

Each friend will get  \frac{1}{18} of whole pan of corn bread

Step-by-step explanation:

As given,

Corn bread left = \frac{1}{3}

Total number of friends = 2

So the left bread will divide into 2 parts

So, each person will get = \frac{1}{2} ( \frac{1}{3} ) = \frac{1}{6} of the left bread

Now,

Left bread = \frac{1}{3} of whole bread

And

Each person get  =  \frac{1}{6} of the left bread

                            = \frac{1}{6} ×\frac{1}{3} of whole bread

                            = \frac{1}{18}of whole bread

∴ we get

Each friend will get  \frac{1}{18} of whole pan of corn bread

8 0
3 years ago
1. There are 10 cards. 4 of them are of green color and another 6 are of
Damm [24]
The Probability of him getting green is 4/10 which is 2/5
6 0
2 years ago
5-2.1=? 5-2.17=? 5-2 7/8 solve make sure to re-check your self before answering or no forty points
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Answer

A is the symbol for parallel lines AB and XY.

Explanation

B shows that line segment AB and XY are parallel, because there are no arrows, and line segments do not extend forever.

C shows that ray AB and XY are parallel, because there is one arrow, and rays only extend on one point.

Only A shows that line AB and XY are parallel. Lines extend forever, the A shows that AB and XY are parallel, since there are arrows in both directions above AB and XY.

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