Solve the problem.A typesetter can keyboard 286 words in 3.4 minutes. How many words per minute can he set? Round to the nearest tenth.
A. 84.1 words/min
B. 972.4 words/min
C. 289.4 words/min
D. 282.6 words/min
Answer: A
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Rationalize the denominator.
A. 
B. 
C. 
D. 
Simplify the expression. Assume all variables represent nonzero real numbers.(-2x)6
A. -64x6 B. 64x6 C. 12x D. -12x
Describe the transformation required to obtain the graph of the given function from the basic inverse trigonometric graph.f(x) = 8 tan-1 
A. Vertical translation up 8 units and horizontal translation to the right 7 units
B. Vertical stretch by a factor of 8 and horizontal shrink by a factor of 
C. Vertical stretch by a factor of 7 and horizontal stretch by a factor of 8
D. Vertical stretch by a factor of 8 and horizontal stretch by a factor of 7
Identify the element specified for the matrix.
a11
A. 3 B. -6 C. 5 D. -4