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2 years ago

15

Use the net find the surface area of the cylinder give your answer in terms of Pi

1 answer:

sesenic [268]2 years ago

7 0

If the net was folded into a cylinder, the length of the rentangle would be the circumference of the circle since it wraps around it.
C = 2pi*r
So 2pi*3 = 6pi
Then multiply by the height to get 84pi

Then the area of a circle is pi*r^2
We have two circles so 2 * pi * 3^2 = 18pi

Add to get 84pi + 18pi = 102pi.

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The average wage for an electrician in CA is $25.47/hour. That is 11% above the national average. What is the national average?

yan [13]

Answer:

$22.95/hour.

Step-by-step explanation:

It is given that the average wage for an electrician in CA is $25.47/hour. That is 11% above the national average.

Let as consider x be the national average.

11% above the national average is

$x+\dfrac{11}{100}x=x+0.11x=1.11x$

The average wage for an electrician in CA is 11% above the national average. So,

$1.11x=25.47$

Divide both sides by 1.11.

$x=\dfrac{25.47}{1.11}$

$x=22.945945...$

$x=22.95$

Therefore, the national average is $22.95/hour.

3 0

2 years ago

What is the equation for the line? Enter your answer in the box

Ipatiy [6.2K]

y=-1/2x-4

I could be wrong. Not my strong subject.

-Seth

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3 years ago

Last week, there were 420 new subscribers to a Web site. This week, the number of new subscribers decreased by 5%. How many new

zlopas [31]

Answer:

x = 399 new subscribers

Step-by-step explanation:

Let 420 = 100%

x = 95%

420*95 = 100x

x = 420*95/100

x = 399 new subscribers

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2 years ago

The frog population on an island is declining at a rate of 3.2% per year. The population was 4500 in the year 2009.

Vera_Pavlovna [14]

Um maybe 5.2 it depends on the frog and how many they eat to reproduce faster

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2 years ago

How many decimal places are in the product of 1.91 and 2.3?

san4es73 [151]

Answer:

3

Step-by-step explanation:

2+1 = 3

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2 years ago

Read 2 more answers