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Marrrta [24]
3 years ago
7

Find the total surface area of each of the following cylinders.

Mathematics
1 answer:
zhuklara [117]3 years ago
5 0

Answer:

272\pi

Step-by-step explanation:

Area of Circle =

\pi   {r}^{2}  \\ r \:  =  \frac{8}{2} = 4 \\ \pi {4}^{2}   = 16\pi

Circumference =

\pi d \\ 8\pi

SA =

2(16\pi) + 30(8\pi) = 272\pi

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luda_lava [24]

Answer: a) y=-29x-20 b) y=3/5x-18

Step-by-step explanation:

a) m = (-49-38)/(1 - (-2)) = -87/3 = -29

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(-49)=-29(1)+b

-49=-29+b

-b=-29+49

b=-20

Therefore, the equation of the line is y=-29x-20

b) m = (-18-(-9)/(0-15)) = -9/-15 = 3/5

The y-intercept is (0,-18) as it's where the line intersects the y-axis and x equals 0

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2 years ago
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Answer: A and B.

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3 years ago
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Bezzdna [24]

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Step-by-step explanation:

This is right because if it goes- it goes lower and if it goes up on + it goes higher.

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In chemistry, there is a class of compounds called alkanes. They have the general formula 2x+2, where stands for a carbon
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Answer:Alkanes: CnH2n+2

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Step-by-step explanation:

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