Use the following figure. Lines m and n are parallel. State whether the given pair of angles is congruent or supplementary and explain why. 
?4 and ?6
A. supplementary; They are consecutive exterior angles.
B. supplementary; They are consecutive interior angles.
C. congruent; They are corresponding angles.
D. congruent; They are alternate exterior angles.
Answer: B
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Find the first four nonzero terms of the Maclaurin expansion of the given function.f(x) = ex sin x
A. 1 + x2 + 
x3 + 
x5 + ...
B. 1 + x + 
x2 - 
x6 - ...
C. 1 + 
x + 
x3 - 
x5 - ...
D. x + x2 + 
x3 - 
x5 - ...
Solve the problem.A railroad bridge is built over a V-shaped canyon. If the supports are 8 feet long at each end, the center support is 560 feet long, and the supports increase in length by 4 feet with each support (from 8 feet to 560 feet), what is the total length of all the supports?
A. 78,396 ft B. 78,384 ft C. 78,392 ft D. 78,388 ft
Solve the inequality, and graph the solution set.
< 0
A. (-2, 8)
B. (8, ?)
C. (-?, -2) or (8, ?)
D. (-?, -2)
Find the matrix product, if possible.
A. 
B. 
C. 
D. 