Simplify.-4x + 4y + 6x + 8y
A. 12x + 2y
B. 2x + 12y
C. 2x - 12y
D. 14xy
Answer: B
Mathematics
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Find the area of the specified region.Shared by the circles r = 2 and r = 4 sin ?
A. 
(2? + 3
)
B. 2?
C. 
(4? - 3
)
D. 
?
Mathematics
Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = 3xx2
A. 3xx2 + 1(2 ln 3x ) B. x(2 ln 3x +1) C. xx2 + 1 ln 3x D. 3xx2 + 1(2 ln 3x + 1)
Mathematics
Provide an appropriate response.Solve the following equation: 
x + 
= 
x
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the inequality, and graph the solution set.
< x
A. (-?, 3) ? (7, ?)
B. (3, 7)
C. (0, 3) ? (7, ?)
D. (7, ?)
Mathematics