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Question

If 100.13= 14 and ( 0.1)x = 140, then what is the value of x.

A -1.13 Correct Answer Incorrect Answer
B -1.9 Correct Answer Incorrect Answer
C -1.12 Correct Answer Incorrect Answer
D -1.8 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

0.1x = 140 or `(1/10)^x` = 140 or 10-x = 14 x10 or 10-x = 100.13x 10 = 101.13 So -x = 1.13 or x = -1.13

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