Simplify the given expression using the definition for negative exponents. Assume that all variables represent nonzero numbers.
A. 
B. 
C. 311
D. 113
Answer: D
Mathematics
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Solve the problem.The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 2 sec when the length is 16 inches, what is the period when L = 4 inches?
A. 3 sec B. 1 sec C. 2.5 sec D. 2.75 sec
Mathematics
Simplify the rational expression. If the expression is already in simplest form, state this as your answer.
A. 
B. 
C. 
D. 
Mathematics
Conditions in a firm's general, industry and competitor environments with the potential to "prevent the firm from successfully using its core competencies" are known as
A. strengths B. weaknesses C. opportunities D. threats
Mathematics
Find the LCM of the given polynomials.x - 20, 20 - x
A. x + 20 B. (x - 20)(20 - x) C. (x - 20) or (20 - x) D. -1
Mathematics