Use the Laws of Exponents to simplify. Write the answer with positive exponents. All variables are nonzero.5 ? m-7 ? m-4 ? m0

A.
B. - 
C. 0
D. 5m28


Answer: A

Mathematics

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Multiply by moving the decimal point the appropriate number of places to the right.2.49 × 100

A. 249 B. 2490 C. 2.49000 D. 24.9

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Find an equation for the ellipse in the graph.

A.  +  = 1
B.  +  = 1
C.  +  = 1
D.  -  = 1

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A die is rolled five times and the number of twos that come up is tallied. Find the probability of getting the indicated result.Two comes up four times.

A. .0032 B. .0040 C. .1161 D. .4019

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