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