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son4ous [18]
3 years ago
13

Help! Will give brainliest! (Whatever it’s called ) Thank you!! Find the surface area! :)

Mathematics
2 answers:
ladessa [460]3 years ago
8 0

Answer:

A=777.54

Step-by-step explanation:

What you do is use the formula which is

a=2pirh+2pir^2.

The radius is half the diameter and the diameter is 15 so you take 15 and divide it by 2 to get 7.5.

The height is 9 m.

A=2(3.14)(7.5)(9)+2(3.14)(7.5)^2=777.54 m.

Sever21 [200]3 years ago
7 0

Answer:

 777.15 m^2

Step-by-step explanation:

To find the surface area of a cylinder

SA = 2 pi r h + 2 pi r^2

The area of the sides Plus the area of the top and bottom

We know the diameter is 15 so the radius  is 1/2 (15) = 7.5

SA = 2 * pi * (7.5) * 9 + 2  * pi * (7.5)^2

     = 135pi + 112.5pi

        247.5 pi

Approximating pi with 3.14

      247.5 (3.14)

     777.15 m^2

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6 0
2 years ago
Stephanie has a homeowners insurance policy for her $355,000 home with an annual premium of $0.42 per $100 of value and a deduct
frosja888 [35]

Answer:

$0.28 per 100 of value (B)

Step-by-step explanation:

Stephanie has a homeowner insurance policy of $355,000

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Stephanie has an annual out of pocket expense of

[($355,000/100) x $0.42] + $500 = $1,991

From the question, Stephanie now wants a new deductible amount of 1000.

Let X be the new annual premium

[(355,000X) / 100] + 1000 = 1991

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X = 991/3550

X = 0.2791

X = 0.28 ( approximately)

The new annual premium is $0.28 per 100 of value

5 0
4 years ago
Which measurement is closest to the area of the border, or the shaded region of this figure in square inches?
Arada [10]

Answer:

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7 0
3 years ago
A town's population is currently 1,100. If the population doubles every 67 years, what will the population be 134 years from now
iris [78.8K]

Answer:

4400

Step-by-step explanation:

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5 0
4 years ago
Read 2 more answers
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