Express the integrand as a sum of partial fractions and evaluate the integral.
A. ln
+ C
B. 3ln
+ 4ln
+ C
C. 4ln
- 4ln
+ C
D. 3ln
+ 4ln
+ C
Answer: D
Mathematics
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Evaluate.|7(-2)| - |1 - 4|
A. -17 B. -11 C. 11 D. 17
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Simplify the radical. Assume that all variables represent nonnegative real numbers. 
A. 4x2 
B. 4x
C. 4xy
D. 4xy2 
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Evaluate f(x) at the given value of x.f(x) = 
x + 
; x = 7
A. 
B. 
C. 16
D. 
Mathematics
Solve the problem.The perimeter of a rectangle is 48 m. If the width were doubled and the length were increased by 13 m, the perimeter would be 90 m. What are the length and width of the rectangle?
A. width 16 m, length 8 m B. width 12 m, length 12 m C. width 8 m, length 16 m D. width 7 m, length 12 m
Mathematics