Find the product. Simplify the answer.
? 
A.
B.
C.
D.
Answer: A
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Find the indicated root, or state that the expression is not a real number.
A. 1 B. 0 C. -1 D. not a real number
As part of a study, 800 college football players are randomly chosen and their weights taken. The distribution of the weights is approximately normal. The average weight is 235 pounds and the standard deviation is 25 pounds.Approximately how many players had weights between 235 and 252 pounds?
A. 37 B. 100 C. 50 D. 200 E. none of these
Determine whether y ? ? or y ? -? as x ? -? and x ? ?.y = x3 + x4 - 3x2 - 4x - 8
A. y ? -? as x ? -?; y ? -? as x ? ? B. y ? ? as x ? -?; y ? ? as x ? ? C. y ? ? as x ? -?; y ? -? as x ? ? D. y ? -? as x ? -?; y ? ? as x ? ?
Factor completely. If the polynomial cannot be factored, say it is prime.(9 - x)3 - x3
A. (9 - 2x)(x2 - 9x + 81) B. (9 + 2x)(x2 - 9x + 81) C. (9 - x)(x2 - 9x + 81) D. (9 - 2x)(3x2 - 9x + 81)