Simplify the expression. Write your answer with only positive exponents. Assume that all variables represent nonzero real numbers.
4
A. 
B. 
C. 
D. 
Answer: B
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The figure shows the graph of a function. At the given value of x, does the function appear to be differentiable, continuous but not differentiable, or neither continuous nor differentiable?x = 0
A. Differentiable B. Continuous but not differentiable C. Neither continuous nor differentiable
For an arc length s, area of sector A, and a central angle ? of a circle of radius r, find the indicated quantity.? = 1.5 radians, s = 18 in., find r
A. 27 in. B. 12 in. C. 8.6 in. D. 4.3 in.
Find the standard deviation for the given data. Round your final answer to one more decimal place than that used for the observations.The manager of a small dry cleaner employs six people. As part of their personnel file, she asked each one to record to the nearest one-tenth of a mile the distance they travel one way from home to work. The six distances ( in miles) are listed below.14.2?14.9?26.8?46.9?11.5?17.7
A. 2904.0 mi B. 3787.0 mi C. 13.29 mi D. 36.9 mi
Simplify by adding or subtracting like terms.8x - x - 3x + x
A. x2 + 5x B. -x2 + 5x C. 7x D. 5x