Solve.Suppose that y varies directly as the cube of x. If x is tripled, what is the effect on y?

A. It's multiplied by 3.
B. It's cubed.
C. It's multiplied by 9.
D. It's multiplied by 27.


Answer: D

Mathematics

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Solve the problem.An initial investment of $12,000 is appreciated for 3 years in an account that earns 6% interest, compounded quarterly. Find the amount of money in the account at the end of the period.

A. $14,135.39 B. $14,292.19 C. $2347.42 D. $14,347.42

Mathematics

Classify ?ABC using its angles.


(a) obtuse
(b) acute
(c) equiangular
(d) b and c

Mathematics

Graph the equation and give the coordinates of the vertex.y = x2 - 5

A. (5, 0)

B. (0, -5)

C. (-5, 0)

D. (0, 5)

Mathematics

Use transformations to graph the function.y = -4 sin (x + )

A.

B.

C.

D.

Mathematics