Write a formula for the nth term of the geometric sequence.-2, -6, -18, -54, -162, . . .
A. an = -2(3n)
B. an = -2(3)n - 1
C. an = a1 + 3n
D. an = -2(3)n
Answer: B
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Find 
and 
.f(x, y) = sin2 (2xy2 - y)
A. 
= 4y2sin (2xy2 - y) cos (2xy2 - y); 
= 2sin (2xy2 - y) cos (2xy2 - y)
B. 
= 2sin (2xy2 - y) cos (2xy2 - y); 
= (8x - 2) sin (2xy2 - y) cos (2xy2 - y)
C. 
= 2sin (2xy2 - y) cos (2xy2 - y); 
= 2sin(2xy2 - y) cos(2xy2 - y)
D. 
= 4y2sin (2xy2 - y) cos (2xy2 - y); 
= (8xy - 2) sin (2xy2 - y) cos (2xy2 - y)
Provide an appropriate response.An automotive mechanic earns $12.60 an hour with time-and-a-half for any time over 40 hours a week. One week he works 46 hours. What is his gross pay?
Fill in the blank(s) with the appropriate word(s).
Find all solutions of the equation in the interval [0, 2?). Round the solution to four decimal places.2 csc x - 9 = 0
A. {0.2241, 2.9175} B. {0.2241} C. {0.2241, 6.0591} D. {0.2241, 3.3657}
Solve the problem.Find a so that the graph of f(x) = loga x contains the point (6, 10).
A. 
B. 
C. 
D. 