Evaluate the expression for the given values of the variables, if possible.-3xy
x = 7, y = -4
A. 74
B. 84
C. -84
D. 184
Answer: B
Mathematics
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Simplify the expression. Assume that the variables are positive.
?
What will be an ideal response?
Mathematics
Determine if the function f defined by the arrow diagram has an inverse. If it does, create an arrow diagram that defines the inverse. If not, explain why not.
A. Yes;
B. No; the function is not one-to-one.
Mathematics
Solve the polynomial inequality. Express the solution in interval notation.x2 - 6x - 7 ? 0
A. [7, ?) B. (-?, -1] ? [7, ?) C. [-1, 7] D. (-?, -1]
Mathematics
Use the row transformation described to transform the matrix.
A. 
B. 
C. 
D. 
Mathematics