Rationalize the denominator. Assume all variables represent positive numbers.

A.
B.
C.  - 
D.

Answer: D

Mathematics

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Solve the problem.Find the work done by a force of 13i (newtons) in moving as object along a line from the origin to the point  (distance in meters).

A. 91 joules
B. 91 joules
C. 13 joules
D. 64.35 joules

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Mathematics

Write a description of the shaded region using the symbols A, B, C, ?, ?, -, and ' as needed.

A. A ? B B. A' ? B' C. A - B D. (A ? B)'

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Mathematics

Find the slope of the line.Through (9, 5) and (-3, -2)

A. - 4
B. - 
C.
D.

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Mathematics

Write the number as an exponential expression, using the base shown. Check your result with a calculator.  (base 10)

A. 210 B. -102 C. 102 D. 10-2

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Mathematics