Find the nth term of the geometric sequence with the given values.3, -9k, 27k2, . . . ; n = 5
A. -729k5
B. 243k5
C. -729k4
D. 243k4
Answer: D
Mathematics
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Find the limit, if it exists.
A. 1
B. 
C. 
D. ?
Mathematics
Find the value of df-1/dx at x = f(a).f(x) = 2x + 10, a = 4
A. 
B. 
C. 2
D. 10
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - 
, 
< ? < ?Find tan(2?).
A. 
B. 
C. 
D. 
Mathematics
Solve.Two plumbers make house calls. One charges $90 for a visit plus $40 per hour of work. The other charges $70 per visit plus $50 per hour of work. For how many hours of work do the two plumbers charge the same?
A. 2 hr B. 2.5 hr C. 1.5 hr D. 1 hr
Mathematics