Rewrite with positive exponents, and simplify, if possible.

A. 7xy1/5
B.
C.
D. 7xy5


Answer: C

Mathematics

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Solve the problem.The length a spring is stretched from its natural length with work, W is given by  L = where k is a constant for the given spring. If a certain spring has a constant of 54.9, and the spring is to be stretched 4.3 feet from its natural length, how much work will be necessary? Round to the nearest tenth of a foot-pound.

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Mathematics

Solve the problem.The population of rabbits varies with the season due to migration, birth and death. The number, N, of rabbits during month x on a certain midwestern farm can be estimated with the following graph. 1=January, 2=February, and so on. During which months are there approximately 140 rabbits on the farm?

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Mathematics