Solve the system of equations by the substitution method.9x + y = -13-9x - 5y = 17
A. 
B. 
C. 
D. {(1, 11)}
Answer: C
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (72)-1
A. 
B. - 
C. -14
D. -49
Mathematics
Decide whether or not the ordered pair is a solution to the equation.x + y = 6; (3, 8)
A. Yes B. No
Mathematics
Perform the indicated operation.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Use the graph of the polynomial to solve the indicated inequality.P(x) > 0
A. (-5, -2) ? (2, ?) B. (-?, -2) ? (2, ?) C. (-5, 2) D. (-?, 2) ? (2, 5)
Mathematics