Solve the equation for the indicated variable.5r + 1 = 9s for r
A. 
s - 1
B. 
s + 1
C. 9s - 
D. 
Answer: D
Mathematics
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Find the derivative of y with respect to the independent variable.y = (ln 4?)?
A. 
(ln 4?)?-1
B. ?(ln 4?)?-1
C. 
(ln 4?)?-1
D. (4?)? ln ?
Mathematics
Use the Fundamental Counting Principle to solve the problem.There are 8 performers who are to present their acts at a variety show. One of them insists on being the first act of the evening. If this request is granted, how many different ways are there to schedule the appearances?
A. 64 B. 56 C. 5040 D. 40,320
Mathematics
The first several terms of a sequence are given. Find the indicated partial sum.-32, 64, -128, 256, . . . ; S5
A. - 352 B. - 480 C. 672 D. -512
Mathematics
Solve for x.- 
(x - 4) - 
(x - 7) = x + 9
A. x = - 
B. x = - 
C. x = - 
D. x = - 
Mathematics