Find the common difference for the arithmetic sequence.6, 9, 12, 15, . . .

A. 9
B. 6
C. 2.25
D. 3


Answer: D

Mathematics

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Solve the equation.a - 2 = 10

A. 12 B. -12 C. -8 D. 8

Mathematics

Find the value of r and determine if a correlation exists at the indicated level of significance.?? = 0.05

A. r = -0.8216; Correlation does not exist. B. r = 0.8242; Correlation does not exist. C. r = -0.8242; Correlation does not exist. D. r = -0.8242; Correlation exists.

Mathematics

Solve.A musician plans to perform 5 selections for a concert. If he can choose from 8 different selections, how many ways can he arrange his program?

A. 6720 B. 32,768 C. 56 D. 40

Mathematics

Sketch the graph of the polar equation.r sin ? = 4

A.

B.

C.

D.

Mathematics