Match the given function to its graph.1) y = 2 sin (3x)2) y = 2 sin (x)3) y = 2 cos (3x)4) y = 2 cos (x)AB?CD?

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A. 1C, 2A, 3B, 4D
B. 1A, 2C, 3D, 4B
C. 1D, 2B, 3A, 4C
D. 1C, 2A, 3D, 4B

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Answer: B

Mathematics

Find (9x + 9)3 .Don't forget that (9x + 9)3 means (9x + 9)(9x + 9)(9x + 9). 

A. 729x3 + 729x2 + 2,187x + 729 B. 729x3 + 2,187x2 + 2,187x + 81 C. 729x3 + 2,187x2 + 729x + 729 D. 729x3 + 243x2 + 2,187x + 729 E. 729x3 + 2,187x2 + 2,187x + 729

Determine whether the function is a solution of the wave equation.w(x, t) = cos (2t - 2cx), c ? 1

A. No B. Yes

Find the nth term of the arithmetic sequence with the given values., , 1, . . . ; n = 16

A.
B.
C. 4
D.

Solve.The bar graph shows the percent change in stock over the past month for five different companies. Rank these companies in order from biggest loss to biggest gain in their stock prices.

A. Company E, Company A, Company C, Company B, Company D B. Company C, Company A, Company E, Company B, Company D C. Company E, Company A, Company C, Company D, Company B D. Company C, Company A, Company E, Company D, Company B