Determine the integral by making an appropriate substitution.
dx
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Answer: A
Mathematics
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Factor by grouping.3x2 + 7xy + 21x + 49y
A. (x - 7)(3x - 7y) B. (3x + 7y)(3x + 7) C. (x + 7)(3x + 7y) D. (3x + 7)(7x + 3y)
Mathematics
Evaluate.Find (f - g)(5) given f(x) = 5x2 - 3 and g(x) = x - 5.
A. 132 B. 112 C. 122 D. -127
Mathematics
Find the slope of the line passing through the pair of points.
A) m = 5
B) m = 1
C) m = 2
D) m = -1
E) none of these
Mathematics
Simplify, if possible.14 - 
A. -45 B. -55 C. 11 D. 73
Mathematics