Find A-1, if it exists.A = 
A. 
B. 
C. Does not exist
D. 
Answer: C
Mathematics
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Solve the system by graphing. If there isn't a unique solution to the system, state the reason.
A. (2, 3) B. (3, 2) C. (3, -2) D. inconsistent system of equations
Mathematics
Add.
A. 105,403 B. 105,603 C. 191,524 D. 104,403
Mathematics
Find the partial derivative.Let z = f(x, y) = (x + y)5. Find 
.
A. 5y(x + y)4 B. 5(x + y)4 C. 5x(x + y)4 D. 5(x + y)
Mathematics
For problems 7-12, solve the equations. If the solution is irrational, round to the nearest ten-thousandth.
A. 
B. 
C. 
D. 
E. none of these
Mathematics