Solve the equation or inequality.
? 0
A. (-?, -6)
B. ?
C. {-6}
D. {6}
Answer: C
Mathematics
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Solve by the substitution method.4x + 6y = 02x + 3y = 0
A. {(9, -6)} B. ? C. {(9, -5)} D. {(8, -5)}
Mathematics
Estimate the derivative of the function 
at the point 
.
?
Please round the answer to the nearest whole number.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Determine which value(s), if any, must be excluded from the domain of the variable in the expression.
A. none B. x = 0 C. x = 9 D. x = -9
Mathematics
Consider the linear programming problem
Sketch the feasible set for the linear programming problem.
Mathematics