Find an antiderivative of the given function.4 cos 9x
A. 
sin 9x
B. - 36 sin 9x
C. sin 9x
D. 4 sin 9x
Answer: A
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Use a calculator with a 
key or a 
key to solve the problem.The exponential function 
describes the price P, in dollars, of a movie ticket in a local cinema in year x, assuming a yearly inflation rate of 
What was the original ticket price (year 0)? What will the price be in year 9?
What will be an ideal response?
Refer to the following normal curve, with mean ? and standard deviation ?.
The value of the second quartile Q2 =
A. 100 B. 40 C. 27 D. 54 E. none of these
Consider the system 
(a) Rewrite it in the form AX = B where, A, B, and X are appropriate matrices.(b) Find the inverse of A.(c) Solve the system by computing A-1B.
What will be an ideal response?
Find the integral.
dx
A. 
x7/3 - 
x7/2 + C
B. 
x7/3 - 
x7/2 + C
C. 
x7/3 - 
x7/2 + C
D. 
x7/3 - 
x7/2 + C