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Juliette [100K]
3 years ago
9

How could you rewrite (-3 + 5) + 8 + (-1)

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
7 0

(-3 + 5) + 8 + (-1)=

2 + 8 - 1 =

= 9

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Annette [7]

Answer:

<h2>a = 16</h2>

Step-by-step explanation:

Look at the picture.

The formula of an area of a trapezoid is:

A=\dfrac{b_1+b_2}{2}\cdot h

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We have:

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Substitute:

128=\dfrac{a+2+a-2}{2}\cdot8\\\\128=\dfrac{2a}{2}\cdot8

128=8a          <em>divide both sides by 8</em>

16=a\to a=16

8 0
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Step-by-step explanation:

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