Factor by grouping.xy + 3x + 2y + 6
A. (x - 3)(y + 2)
B. (x - 3)(y - 2)
C. (x + 2)(y - 3)
D. (x + 2)(y + 3)
Answer: D
Mathematics
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Find the derivative of the function.r = 
(5 - ?)
A. 
= 
+ 5
B. 
= - 
- 1
C. 
= 
+ 1
D. 
= ?2 - 1
Mathematics
Simplify.- 
+ 
A. - 
B. - 
C. 0
D. - 
Mathematics
Solve. Write the fraction in simplest form.Of the fifty states in the United States, 12 have at least one mountain higher than 12,000 feet. What fraction of states do not have a mountain higher than 12,000 feet?
A. 
B. 
C. 
D. 
Mathematics
Indicate whether the statement is true or false.
is an integer.
A. true B. false
Mathematics