Write an equation that expresses the relationship. Use k as the constant of variation.x varies jointly as m and the square of n.
A. x =kmkn2
B. x = 
C. x = 
D. x = kmn2
Answer: D
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Solve the problem.A ball is dropped from a height of 15 m and always rebounds 
of the height of the previous drop. How far does it travel (up and down) before coming to rest?
A. 45 m B. 90 m C. 75 m D. 30 m
Arrange the quantities in order from smallest to largest.8800 cg, 64 dag, 4.7 hg
A. 64 dag, 4.7 hg, 8800 cg B. 8800 cg, 64 dag, 4.7 hg C. 64 dag, 8800 cg, 4.7 hg D. 8800 cg, 4.7 hg, 64 dag
Find an equation for the sphere with the given center and radius.Center (0, 0, 8), radius = 5
A. x2 + y2 + 5 z2 - 16z = -39 B. x2 + y2 + 5 z2 + 16z = -39 C. x2 + y2 + z2 + 16z = -39 D. x2 + y2 + z2 - 16z = -39
Simplify the radical expression. Assume all variables represent positive real numbers.
A. 
B. 7
C. 2401
D. not a real number