Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.-3

A.
B.
C.
D.


Answer: C

Mathematics

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Find the least common denominator. ,  , 

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Find the vertices and foci of the ellipse. +  = 1

A. Vertices: (0, ±15); Foci: (0, ±9) B. Vertices: (±15, 0); Foci: ( ±9, 0) C. Vertices: (0, ±15); Foci: (0, ±12) D. Vertices: (±9, 0); Foci: ( ±12, 0)

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When a car skids to a stop, the length L, in feet, of the skid marks is related to the speed S, in miles per hour, of the car by the equation . As speed increases, so does the length of the skid marks. What can you say about the rate of increase? A graph of L versus S can help you answer this question. ?

A. Skid mark length increases more rapidly as speed increases. B. Skid mark length increases rapidly at first but slows as speed increases. C. Skid mark length increases at a decreasing rate. D. None of the above.

Mathematics

Find the number of terms in the sequence or the sum of the sequence as requested.Find the number of terms in the following arithmetic sequence.  8, 11, 14, 17, . . ., 89

A. 81 B. 30 C. 84 D. 28

Mathematics