Simplify.
A. 
B. 
C. 1
D. 
Answer: A
Mathematics
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Use the substitution formula to evaluate the integral.
A. 9
B. 4
C. 
D. 12
Mathematics
Write the interval as an inequality involving x, and illustrate the inequality using the real number line.[2, ?)
A. x ? 2
B. x ? 2
C. x > 2
D. x > 2
Mathematics
Add. Simplify, if possible.
+ 
A. 
B. 
C. 
D. - 
x - 
Mathematics
Evaluate.
dx
A. x + C
B. 10x + C
C. 
x3 + x + C
D. 
x3 + C
Mathematics