Solve the problem.The revenue generated by the sale of x bicycles is given by  Find the marginal revenue when 

A. $18.57/unit
B. $57.00/unit
C. $83.00/unit
D. $70.00/unit


Answer: B

Mathematics

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Solve the problem.A right triangle has an area of 20 square inches. The square of the hypotenuse is 116. Find the lengths of the legs of the triangle. Round your answer to the nearest inch.

A. 8 in. and 5 in. B. 2 in. and 20 in. C. 4 in. and 10 in. D. 16 in. and 100 in.

Mathematics

Find an equation of the parabola described and state the two points that define the latus rectum.Focus at (0, 3); directrix the line y = -3

A. y2 = 16x; latus rectum: (7, 8) and (-7, 8) B. x2 = 12y; latus rectum: (3, 6) and (-3, 6) C. x2 = 16y; latus rectum: (8, 3) and (-8, 3) D. x2 = 12y; latus rectum: (6, 3) and (-6, 3)

Mathematics

Find the x- and y-intercepts of f.f(x) = -x2(x + 3)(x2 + 1)

A. x-intercepts: -3, -1, 0, 1; y-intercept: 0 B. x-intercepts: -3, -1, 0; y-intercept: -3 C. x-intercepts: -3, -1, 0; y-intercept: 3 D. x-intercepts: -3, 0; y-intercept: 0

Mathematics

Find the product.(-5x7)(5x8)

A. -25x15 B. 25x56 C. 25x15 D. -25x56

Mathematics