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sweet [91]
4 years ago
7

What is the first step to solve the absolute value expression 2[x+5]=16 for x

Mathematics
2 answers:
Gnoma [55]4 years ago
6 0
2|x + 5| = 16

|x + 5| = 16 ÷ 2

|x + 5| = 8

x + 5 = 8   (a)

x = 3

-(x + 5) = 8   (b)

-x - 5 = 8

-x = 13

x = -13

x = 3, -13

soldier1979 [14.2K]4 years ago
3 0
The first step would be to divide both sides by 2...because u want to get the absolute value on one side, and everything else on the other side

2 | x + 5 | = 16...divide both sides by 2
| x + 5 | = 16/2
| x + 5 | = 8

u would then solve x + 5 = 8 and x + 5 = -8 for ur answers
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Part B if the height of each prism is 10 Cm what is the surface area prism
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Answer:

Prism A:

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Prism B:

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Step-by-step explanation:

Given

See attachment for prisms

Height(h) = 10cm

Required

Determine the surface area of both prisms

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and

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From the attachment;

a = 8; b =6; c =10

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Area = 2 * (ab + bh + ah)

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a = b = 5

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So:

Area =2 * (5 * 5 + 5 * 10 + 5 * 10)

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