Solve the system of nonlinear equations. xy = 2x + y = 3
A. (2, -1), (1, -2)
B. (2, 1), (1, 2)
C. (-2, -1), (-1, -2)
D. (-2, 1), (-1, 2)
Answer: B
Mathematics
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Multiply.(15 + x)2
A. x + 225 B. x2 + 30x + 225 C. 225x2 + 30x + 225 D. x2 + 225
Mathematics
Find the inverse of the function.f(x) = e-x + 2
A. f-1(x) = -ex - 2
B. f-1(x) = -ln(x - 2)
C. f-1(x) = ln 2 - ln x
D. f-1(x) = ex - 
Mathematics
The double line graph below shows the number of Acme Superstores vs. the number of General Superstores. 
Approximately how many more stores did General have than Acme in 2011?
A. approximately 200 B. approximately 500 C. approximately 250 D. approximately 750
Mathematics
Multiply. Write the answer in simplest form.42x2 ? 
A. 
B. 25x2
C. 
D. 30x2
Mathematics