Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio, r, are given.a4 = 108; r = 3
A. an = 2916(
)n-1
B. an = 4(3)n
C. an = 4(3)n-1
D. an = 4 + (3)n-1
Answer: C
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Find all the first order partial derivatives for the following function.f(x, y) = (9x4y3 + 2)2
A. 
= 72x3y3(9x4y3 + 2); 
= 54x4y2(9x4y3 + 2)
B. 
= 36x3y3; 
= 27x4y2
C. 
= 54x4y2(9x4y3 + 2); 
= 72x3y3(9x4y3 + 2)
D. 
= 2(9x4y3 + 2); 
= 2(9x4y3 + 2)
Solve. Write the answer in simplest form.A construction crew replaced 
mile of sewer line in the process of updating a section of a road. Another crew replaced 
mile of sewer line while working on the same project. How much longer was the sewer line that the second crew replaced?
A. 
mi
B. 
mi
C. 
mi
D. 
mi
Find the x- and y-coordinates of the following labeled points.
A. R(6, 2); S(-4, -7) B. R(-7, 6); S(-4, -7) C. R(-7, -4); S(6, -4) D. R(-7, 6); S(-7, -4)
Solve.
= 4
A. 
B. 
C. 
D. 