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forsale [732]
3 years ago
9

Expand and evaluate the power.

Mathematics
2 answers:
GenaCL600 [577]3 years ago
7 0
It would be 2.56

Hope this helped you!

Zinaida [17]3 years ago
3 0
1.6 x 1.6 = 2.56

Hope this helped!
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Step-by-step explanation:

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A first number plus twice a second number is 14. twice the first number plus the second totals 31. find the numbers.
topjm [15]
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Define the two numbers
-----------------------------------------------------------
Let the first number be x.
Let the second number be y.

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Form equations and solve x and y
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x + 2y = 14 ------------------ (1)
2x + y = 31 ------------------ (2)

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Equation (1) x 2
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2x + 4y = 28  ---------------(1a)

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Equation (1a) - 2
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y = -1

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Substitute y = -1 into (1)
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x = 16

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Answer: x =16, y = -1
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Answer:

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