Factor by grouping.xy + y + 7x + 7
A. (7x + 7)(y + 1)
B. (x + 1)(7y + 7)
C. (x + 7)(y + 1)
D. (x + 1)(y + 7)
Answer: D
Mathematics
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Solve the equation.
= 8
A. 509 B. -1 C. 515 D. 125
Mathematics
Use a CAS to perform the integration.
A. 
ln x - 
+ C
B. 
ln x - 
+ C
C. 
ln x + 
+ C
D. 
ln x - 
+ C
Mathematics
Simplify the expression by using the order of operations.240 ÷ 8 - 4
A. 228 B. 60 C. 236 D. 26
Mathematics
Find the standard form of the equation of the ellipse satisfying the given conditions.Major axis horizontal with length 12; length of minor axis = 8; center (0, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics