Evaluate the following improper integral whenever it is convergent.
?
?
A. 8
B. 0
C. -6
D. -10
E. the integral is divergent
Answer: E
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Solve the problem.Find the value of b for which 1 + eb + e2b + e3b + . . . = 9.
A. ln 
B. ln 
C. ln 
D. ln 
Solve the problem.Dave, Doug, and Cindy want to divide a cake fairly using the lone chooser method. Cindy gets to be the chooser and Dave and Doug are the dividers, with Dave having to make the first division of the cake into two pieces. Suppose that x% represents the value of Dave's share (to Dave), y% represents the value of Doug's share (to Doug), and z% represents the value of Cindy's share (to Cindy). Assuming each player plays the game correctly, which of the following statements is true?
A. x% must be 
%; y must be bigger than x; z must be bigger than or equal to y.
B. y must be bigger than or equal to x; z must be bigger than or equal to y.
C. x% must be 
%; y% must be 
%; z% must be more than 
%.
D. x% + y% + z% = 100%
E. none of these
Find the opposite of the polynomial.-7a3 + 7a2 + 7a - 4
A. -7a3 + 7a2 + 7a + 4 B. 7a3 - 7a2 - 7a + 4 C. 7a3 + 7a2 + 7a - 4 D. -7a3 - 7a2 - 7a - 4
Find the indicated trigonometric function of ?.
Find sin A and cos A.
A. sin A = 
; cos A = 
B. sin A = 
; cos A = 
C. sin A = 
; cos A = 
D. sin A = 
; cos A = 