Write a formula for the general term, or nth term, for the given sequence.-2, 4, -8, 16, -32, . . .
A. an = (-1)n(2n)
B. an = -2 + 2(n - 1)
C. an = (-1)n(2)n
D. an = (-1)n - 1(2)n
Answer: C
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The data in the figure below represents the annual salaries of 200 professional musicians.
Approximately how many musicians make $40,000 or less?
A. 54 B. 27 C. 50 D. 100 E. none of these
Find the roots of the equations.
= 
A. 0, 36
B. 0
C. 0, 
D. 4, 6
Solve the problem.Michael's bank contains only nickels, dimes, and quarters. There are 56 coins in all, valued at $4.90. The number of nickels is 4 short of being three times the sum of the number of dimes and quarters together. How many dimes are in the bank?
A. 11 dimes B. 6 dimes C. 41 dimes D. 9 dimes
Find the solution set for the system by graphing both of the system's equations in the same rectangular coordinate system and finding points of intersection.
A. {(4, -3), (3, -4)} B. {(4, 3), (3, 4)} C. {(-4, -3), (-3, -4)} D. {(-4, 3), (-3, 4)}