Use the properties of exponents to simplify the expression so that only positive exponents remain.
?

?

A.
B.
C.
D.
E.

Answer: B

Mathematics

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Find the standard deviation of the data.The normal monthly precipitation (in inches) for August is listed for 12 different cities. Find the standard deviation. Round to the nearest hundredth.3.5 1.6 2.4 3.7 4.1 3.91.0 3.6 4.2 3.4 3.7 2.2

A. 12.03 in. B. 1.00 in. C. 1.09 in. D. 1.05 in.

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Determine if the ordered pair is a solution to the given inequality.7x + 4y ? -10; (2, 3)

A. Yes B. No

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Solve the equation for x.sin-1 x + cos-1  = ?

A.
B. {1}
C. {0}
D.

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Write the number in standard form.The speed of light is 1.86 × 105 miles per hour.

A. 1,860,000 B. 0.0000186 C. 18,600,000 D. 186,000

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