Multiply and simplify. Assume that all variables in a radicand represent positive real numbers.
? 
A. 2xy
B. 2x2y2
C. 2xy2
D. xy
Answer: A
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Find the slope of a line tangent to the given curve at the point P by finding the limit of the slopes of the secant lines PQ as Q approaches P.y = 5x2 - 5; P is (3, 40); let Q have x-values of 2.5, 2.9, 2.99, 2.999
A. Slopes: 7.5, 9.5, 9.95, 9.995 m = 10 B. Slopes: 27.5, 29.5, 29.95, 29.995 m = 30 C. Slopes: 22.5, 24.5, 24.95, 24.995 m = 25 D. Slopes: 12.5, 14.5, 14.95, 14.995 m = 15
You are given a table showing input and output values for a given function y1 = f(x). Use the table to answer the question.What is the y-intercept of the graph of y = f(x)?
A. -3 B. 0 C. 3 D. -1
The graph of the polynomial f(x) is shown in the figure. Estimate the zeros and state whether their multiplicities are odd or even.
A. -2 (odd), 0 (odd) B. -2 (even), 0 (odd) C. -2 (even), 0 (even) D. -2 (odd), 0 (even)
Translate the problem to a system of equations, then solve using Cramer's Rule.Two different gasohol mixtures are available. One contains 5% alcohol and the other 12% alcohol. How much of each should be mixed to obtain 500 gallons of gasohol containing 10% alcohol?
A. 208 gal 5%, 292 gal 12% B. 143 gal 5%, 357 gal 12% C. 357 gal 5%, 357 gal 12% D. 25 gal 5%, 60 gal 12%