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Lesechka [4]
3 years ago
10

Please help- its the last one i have to get done

Mathematics
1 answer:
ycow [4]3 years ago
5 0

36

Step-by-step explanation:

5x-6+3x+90=180

8x+84=180

8x=96

x=12

Plug it in to 3x

3x12=36

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The area of the surface of a circular pond is needed. A measure about the pond gives a circumference of about 47 feet. Find the
Whitepunk [10]

Answer:

55.95 ft²

Step-by-step explanation:

Circumference formula:  C = 2πr  =>  r = C / (2π)

Area formula:  A = πr²

Substituting C / (2π) for r in the above equation, we get:

               C                        47 ft

A = π( ----------- )²  =  π ( -------------- )²

              2π                       (2π)

or ...

          π(47 ft)²                   2209 ft²

A = ----------------------  =  --------------------  =  55.95 ft²

               4π²                   4(3.14159)²

3 0
3 years ago
I really need this, someone help
Nimfa-mama [501]

6+6+8+14=34 all you need to do is add them I think

3 0
3 years ago
Jack knows the surface area of a cylinder and its radius. He wants to find the cylinder's height. He needs to rewrite the formul
igomit [66]
Maybe is the answer C
6 0
3 years ago
Expand the following logarithmic expression.
Nat2105 [25]

Answer:

log5(8)+Log5(\sqrt{t})-log5(v)

Step-by-step explanation:

coolio

You can use the log rules

5 0
3 years ago
For what value of x must ABCD be a parallelogram? asap please!!
pochemuha
Parallelogram so
CD = AB
18x - 5 = 15x + 4
3x = 9
  x = 3

answer
x = 3
3 0
4 years ago
Read 2 more answers
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