Write the phrase as a variable expression. Use x for the unknown number.The sum of 18 and twice a number

A. 2(18 + x)
B. 18 - 2x
C. 18 + 2x
D. 18 + x


Answer: C

Mathematics

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Solve the equation. = 

A. -2, 6 B. 0, - 3 C. No solution D. 0, 36

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Determine whether the given equation is a rational function.f(x) = 

A. Yes B. No

Mathematics

Select the first five terms of the sequence. (Assume that n begins with 1.) ? ?

A.

B.

C.

D.

E.

Mathematics

Write the standard form of the equation of the circle with the given center and radius.Center (0, 4), r = 3

A. (x - 4)2 + y2 = 9 B. x2 + (y - 4)2 = 9 C. (x + 4)2 + y2 = 9 D. x2 + (y + 4)2 = 3

Mathematics