Find the sum.Find the sum of the first 90 terms of the arithmetic sequence: 1, 3, 5, 7, . . .
A. 8010
B. 8006
C. 8104
D. 8100
Answer: D
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Evaluate the integral.
A. - 
cos 3x - 
x sin 5x + C
B. - 
cos 3x - 
sin 3x + C
C. - 
cos 3x - 
x sin 3x + C
D. - 
cos 3x - 5x sin 3x + C
Construct the requested tree diagram.Juanita can choose a white, a red, or a black blouse, and a gray or a cream skirt. Construct a tree diagram that shows all possible skirt and blouse outfits that Juanita could select.
A. 
B. 
C. 
D. 
Solve the problem.Jeremy was ordered to perform 210 hours of community service by picking up litter along the highway. Jeremy spends 7 hours each day picking up litter. The equation that tells the number of hours (y) that remain on the sentence after x days is y = 210 - 7x. After 18 days, how many hours of community service does Jeremy have remaining?
A. 228 hours B. 84 hours C. 192 hours D. 126 hours
Find the exact value.ln 
A. 4
B. 
C. 4e
D. 