2 years ago

Can someone help me with question 5? Show steps .. the answer choices are

Mathematics

2 answers:

frez [133]2 years ago

7 0

Answer:

Step-by-step explanation:

A=2*pi*r*h+2*pi*r*2

A=(2*pi*2*8)+(2*pi*2*2)

A=125.66

To express the answer in terms of Pi

A=125.66/pi (3.14)

A=40 pi

bulgar [2K]2 years ago

3 0

Answer:

Step-by-step explanation: The surface area formula for a cylinder is

A=2*π*r*h+2*π*r^2

This picture gives us the radius, which is 2cm, and it gives us the height which is 8cm.

All we have to do now is just plug in the two numbers.

A= 2πrh+2πr^2

A=2π*2*8 + 2π*4

A=4π*8+8π

A=32π+8π

A=40πcm

The answer is 40π cm then!

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Call the width x. Note that the length is 3x-6. We know that double the width plus double the length is 120, so we write an equation:

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