Simplify the expression.
? 
+ 
? 
A. 
B. 
C. 
D. 
Answer: D
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Use the given transformation to evaluate the integral. src="https://sciemce.com/media/4/ppg__as0610191830__f1q56g7.jpg" alt="" style="vertical-align: -4.0px;" /> 
Rwhere R is the parallelepiped bounded by the planes 
A. 54
B. 12
C. 6
D. 27
Solve the problem.Find a curve through the point (0, 3) whose length integral, 0 ? x ? 1, is L = 
A. y = x B. y = x2 + 3 C. y = x2 D. y = 2x + 3
Use integration by parts to establish a reduction formula for the integral.
A. 
= xn ex - n 
B. 
= xn ex - n 
C. 
= xn ex + n 
D. 
= xn ex - 
Solve the problem.Evelyn measured two rooms of her apartment and found that she needed 31.7 square meters of wallpaper for one room and 59.1 square meters for the other. How much wallpaper did she need?
A. 90.9 m2 B. 181.6 m2 C. 100.8 m2 D. 90.8 m2