Find the value for the function.Find f(2x) when f(x) = 2x2 - 5x - 5.

A. 8x2 - 10x - 10
B. 4x2 - 10x - 5
C. 4x2 - 10x - 10
D. 8x2 - 10x - 5


Answer: D

Mathematics

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Find the volume under the surface z = f(x,y) and above the rectangle with the given boundaries.z = 6x2y; R = {(x, y): 0 ? x ? 4, 0 ? y ? 3}

A. 2256 B. 676 C. 576 D. 1256

Mathematics

Provide an appropriate response.Using a graphing calculator, choose the inequality that corresponds to the graph:

A. y ? - 2x2 B. y > - 2x2 C. y < - 2x2 D. y ? - 2x2

Mathematics

Solve the problem.Abbey is driving a delivery truck on a straight road. The graph shows the distance y in kilometers that Abbey is from Store A after x hours. (i) Find the slope-intercept form of the equation of the line. (ii) Use the graph to estimate the y-coordinate of the point  that lies on the line.

A. y = 25x - 300; (6, -150) B. y = -50x + 300; (6, 0) C. y = 25x + 300; (6, 450) D. y = -25x + 300; (6, 150)

Mathematics

Solve by the substitution method.-6x + 9y = -544x - 6y = 36

A. (8, 1) B. (9, 0) C. (0, 9) D. (-54, 36)

Mathematics