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Travka [436]
3 years ago
12

Please help me solve this problem.

Mathematics
1 answer:
levacccp [35]3 years ago
4 0

Answer:

  • h =  V/πr²
  • h = 10 inches

Step-by-step explanation:

  • V = πr²h

<u>1. Solving for h:</u>

  • V = πr²h
  • πr²h = V
  • πr²h/πr² = V/πr²
  • h =  V/πr²

<u>2. Finding the height of given cylinder, using formula above:</u>

  • V = 90π, r = 3 inches, h = ?
  • h =  V/πr²
  • h = 90π/π3²
  • h = 10 inches
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For the second one,

Distribute 7 through the parentheses to get 14x + 14+8=120

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Move the constant to the right side and change its sign to get 14x=120-22

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Divide both sides of the equation by 14 to get x=7.

Your finial answer for the second one should be x=7.
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I hope this made sense.
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