Algebra

Which expression isn't equal to 125?

A. 5((5^3)/(2/5))^2
B. ((5^3) / (5^4))^-3
C. (5^-2)/(5^-5)
D. 5((5^5)/(5^3))

A

What is the correct simplification of (5.4 X 10^12)/(1.2 X 10^3) written in scientific notation?

A. 4.5 X 10^7
B. 4.5 X 10^9
C. 45 X 10^6
D. 6.48 X 10^7

B

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  1. yes

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    posted by Reiny

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