Let 
. Then simplify the expression 
.
?
A. -12
B. -13
C. -8
D. -16
E. undefined
Answer: B
Mathematics
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Factor the polynomial completely.z4 - z3 - z + 1
A. z4 - z3 - z + 1 B. z3(z - 1) - (z - 1) C. z(z3 - 1) - (z3 - 1) D. (z - 1)2(z2 + z + 1)
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Construct a probability model for the experiment.Rolling a 6-sided fair die once
What will be an ideal response?
Mathematics
Solve the problem.A survey revealed that 45% of people are entertained by reading books, 32% by watching TV, and 12% are entertained by both books and TV. What is the probability that a person will be entertained by books given that the person is entertained by TV? Round to the nearest thousandth.
A. 0.45 B. 0.32 C. 0.375 D. 0.267
Mathematics
Simplify the expression.
A. 16 B. -4 C. -16 D. 4
Mathematics