Mathematics, 05.10.2020 17:01 nerd58

Write an equation of the form y = a sin b x or y = a cos bx to describe the graph below.

Answers: 1

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Answer from: Quest

Ican’t sorry i would if i could

Answer from: Quest

plz mark brainliest i took the test

Answer from: Quest

Hello!

the answer is:

the correct option is the option b.

$surfacearea=126\pi units^{2}$

why?

to calculate the surface area of the right cylinder, we need to use the following formula:

$surfacearea=2\pi rh+\pi r^{2}$

from the picture we know that:

$h=2units\\r=7units$

so, substituting and calculting we have:

$surfacearea=2\pi rh+\pi r^{2}surfacearea=2*\pi *7*2+2*\pi *7^{2}=28\pi + 98\pi =126\pi units^{2}$

hence, we have that the correct option is the option b.

$surfacearea=126\pi units^{2}$

have a nice day!

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