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tigry1 [53]
3 years ago
10

What are the steps to get 4 - 2i?

Mathematics
1 answer:
balu736 [363]3 years ago
5 0

Answer:

i = 2

Step-by-step explanation:

First move -2i to the other side of the equation like this: 4 = 2i

Then divide both sides by 2: 4/2 = 2i/2

Then you get your answer!: i = 2

                           

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irinina [24]

Answer:

<u>Width = 7 inches</u>

<u>Length = 23 inches</u>

Step-by-step explanation:

Let :

  • length = 2x + 9
  • width = x

Equating to area :

  • (2x + 9)(x) = 161
  • 2x² + 9x = 161
  • 2x² + 9x - 161 = 0
  • 2x² - 14x + 23x - 161 = 0
  • 2x(x - 7) + 23(x - 7) = 0
  • x - 7 = 0
  • x = 7

Dimensions are :

  • <u>Width = 7 inches</u>
  • Length = 2(7) + 9
  • <u>Length = 23 inches</u>
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2 years ago
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