The graph of a limacon curve is given. Without using your graphing calculator, determine which equation is correct for the graph.
[-5, 5] by [-5, 5]
A. r = 2 - 2 sin ?
B. r = 3 - cos ?
C. r = 2 - 2 cos ?
D. r = 2 - 3 cos ?
Answer: C
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Solve the problem.The stiffness of a rectangular beam is proportional to its width times the cube of its depth. Find the dimensions of the stiffest beam than can be cut from a 
cylindrical log. (Round answers to the nearest tenth.)
A. w = 7.0 in.; d = 9.4 in. B. w = 7.0 in.; d = 11.4 in. C. w = 5.0 in.; d = 11.4 in. D. w = 6.0 in.; d = 10.4 in.
Provide an appropriate response.Horizontal analysis shows the relationship of each item to total assets.
A. True B. False
Simplify the expression. Assume that all variables are positive when they appear.3
+ 7
A. 76
B. -22
C. 22
D. -76
Factor the polynomial completely.64x3 + 8y3
A. 8(2x - y)(4x2 + y2) B. 8(2x - y)(4x2 + 2xy + y2) C. (2x - 8y)(32x2 + 2y + y2) D. 8(2x + y)(4x2 - 2xy + y2)