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Math Precalculus Statistics

Adam B.

asked • 03/31/21

precalulcus hw im confused

Solve: $| 4 x - 9 | < 5$ Give your answer as an interval.

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Raymond B. answered • 03/31/21

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4x-9<5 and -(4x-9)<5

4x-9<5

4x < 14

x < 14/4

x < 7/2 or 3 1/2

-(4x-9) <5

-4x +9 < 5

-4x < 5-9

-4x <-4

x > 1

1<x< 7/2

x is in the interval (1, 7/2)

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