Evaluate the polynomial for the given values of the variables.Evaluate -x2y + 4xy2 - 5 for x = 4 and y = -4.
A. 315
B. 325
C. 197
D. 635
Answer: A
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Graph the function. Specify the intervals over which the function is increasing and the intervals where it is decreasing.y = (-x)5/2
A. Decreasing -? < x < ?
B. Decreasing -? < x ? 0
C. Decreasing -? < x ? 0
Increasing 0 ? x < ?
D. Increasing 0 ? x < ?
Use the principle of mathematical induction to show that the mathematical statement is true for all natural numbers n.Sn: 1 ? 8 + 2 ? 8 + 3 ? 8 + . . . + 8n = 
What will be an ideal response?
Simplify the radical expression by factoring out the largest perfect nth power. 
A. 3
B. 5
C. 20
D. 4
Write the word name for the following standard numeral.5,168
A. Five thousand, one hundred sixty-eight B. Five million, one thousand, sixty-eight C. Five hundred thousand, one hundred sixty-eight D. Fifty-one thousand, sixty-eight