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Mekhanik [1.2K]
3 years ago
8

Evaluate |x|+(-2x^2) for x=3 Answers -9 -15 21

Mathematics
1 answer:
Nikolay [14]3 years ago
8 0

Hello from MrBillDoesMath!

Answer:

-15

Discussion:

We are asked to evaulate:

abs(3) + ( -2 (3)^2) =                         => as abs(3) = 3

3          + (-2*9)  =

3           - 18 =

-15    

Thank you,

MrB

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Information Given:
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ON = 7x - 9
LM = 6x + 4
MN = x - 7
OL = 2y - 7

-----------------------------------------------
Since it is a parallelogram:
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ON = LM and
MN = OL

-----------------------------------------------
ON = LM:
-----------------------------------------------
7x - 9 = 6x + 4

-----------------------------------------------
Subtract 6x from both sides:
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x - 9 = 4

-----------------------------------------------
Add 9 to both sides:
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x = 13

-----------------------------------------------
MN = OL:
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