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alexira [117]
3 years ago
8

I need lots of help with 15 18 19 20 pls pls pls

Mathematics
1 answer:
Katena32 [7]3 years ago
5 0

Answer:

15) x = 112

18) x = 120

19) x = 31

20) x = 65

Step-by-step explanation:

I hope that is useful for you :)

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A square with an area of 64 in2 is rotated to form a cylinder. What is the radius of the cylinder?
romanna [79]
The area of the square is calculated through the equation,

                               Area = e²

where e is the measure of sides.
 
From the given,

                              64 = e²
                               e = sqrt 64 = 8 inches

The length of the side of the square rotated to form the cylinder is the diameter of the base of the cylinder. To get the radius, we divide the diameter by 2.

                             radius = 8 inches / 2 = 4 inches

Thus, the radius of the cylinder is equal to <em>4 inches</em>. 
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3 years ago
Choose the imensions that represen this rectlangl
almond37 [142]

Answer:B

Step-by-step explanation:I hope it help

3 0
2 years ago
Write a related addition equation for the subtraction equation.
Bess [88]

Answer:

-7+12 will also give u 5 with a positive sign

8 0
2 years ago
32x+5 = 3x - 3<br> Solving exponential equations
Likurg_2 [28]

Answer:

x = -8/29 = -0.276

Step-by-step explanation:

Step  1  :

Solving a Single Variable Equation :

1.1      Solve  :    29x+8 = 0

Subtract  8  from both sides of the equation :

                     29x = -8

Divide both sides of the equation by 29:

                    x = -8/29 = -0.276

One solution was found :

                  x = -8/29 = -0.276

Processing ends successfully

plz mark me as brainliest :)

5 0
3 years ago
Read 2 more answers
A principal of $2000 is invested at 7.75% interest, compounded annually. How much will the investment be worth after 14 years?
krek1111 [17]

Answer:

Yearly compounding: 7.75% $5,686.85

Quarterly compounding: 7.978% $5,857.78

Monthly compounding: 8.031% $5,898.27

Daily compounding: 8.057% $5,918.20

Step-by-step explanation:

multiply yearly by 14

7 0
2 years ago
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