2 years ago

What is the surface area of the cylinder with height 4 in and radius 4 in? Round your answer to the nearest thousandth.

Mathematics

1 answer:

alina1380 [7]2 years ago

7 0

Answer:

201.06

Step-by-step explanation:

A=2πrh+2πr^2=2·π·4·4+2·π·4^2

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2 x 10 + 4 x 1 + (7 x 1/10) + (4 x 1/100) + (5 x 1/1000) in standard form

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Step-by-step explanation:

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2 years ago

A triangular pyramid and its net are shown. Rain uses Calculations below to conclude that the surface area of a triangular pyram

Harman [31]

Answer:

Rain is correct, calculates correctly, 238.5 square inches

Step-by-step explanation:

The given triangular pyramid is shown with the dimensions.

The surface area of the triangular pyramid is given by :

$A=\frac{1}{2}\left(a \times b\right) + 3\left(\frac{1}{2}\times b\times s\right)$

$A=\frac{1}{2}\left(10 \times 8.7\right) + 3\left(\frac{1}{2}\times 10\times 13\right)$

$A=43.5+(3\times 65)$

$A=43.5+195$

$A=238.5 \ \text{inche}^2$

Therefore, the surface area of the triangular pyramid is = 238.5 square inches.

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2 years ago

Which of the following is a composite number?

ValentinkaMS [17]

The answer to this question is B

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2 years ago

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Ms.Rochelle wants to put her 29 students into groups of 6.how many groups of 6 can she make if she puts any remaining students i

just olya [345]

7 groups 6 groups of 4 and 1 group of five.

Step-by-step explanation:

I took 29 dots and split them up into 6 groups and had a remander or 5.

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2 years ago

I don’t get this. The answer I chose is wrong.

Sedbober [7]

Answer:

39.99 is the correct answer.

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2 years ago