Mentally evaluate the expression.
? 
? 
? (-2) ? (-8)
A. - 
B. 1
C. 
D. 
Answer: C
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Simplify. If the answer is not a real number, state so. Assume all variables represent non-negative real numbers.
A. not a real number B. 2.828 C. 1.414 D. -2
Provide an appropriate response.The accompanying figure shows a portion of the graph of a function that is twice-differentiable at all x except at x = p. At each of the labeled points, classify y' and y" as positive, negative, or zero.
What will be an ideal response?
Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Three coins are tossed, and the number of heads is noted.
A. 
B. 
C. 
D. 
Solve the problem using your calculator.Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below. Use linear regression to find a linear function that predicts a student's score on Test B as a function of his or her score on Test A.
A. y = -0.930 + 19.4x B. y = 0.930 - 19.4x C. y = 19.4 + 0.930x D. y = -19.4 - 0.930x