Solve and graph the solutions.|x + 16| < 12
A. 
B. 
C. 
D. 
Answer: B
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If you roll N dice, then the probability of getting exactly 3 ones is
.
A: Find the probability of getting exactly 3 ones if you roll 19 dice. Report your answer correct to 3 decimal places.B. How many dice should you roll in order to maximize your chances of getting exactly 3 ones?C: What probability corresponds to the number(s) you found in part B? Report your answer correct to 3 decimal places.
What will be an ideal response?
Solve the problem.The table lists the average composite scores on a national entrance exam for selected years.
(i) Make a line graph of the data.(ii) If the graph represents a piecewise-linear function f, find a symbolic representation for the piece of f located on the interval 
A. 
f(x) = 0.75x - 1359.5 if 1986 ? x ? 1990
B. 
f(x) = 131.5 if 1986 ? x ? 1988
C. 
f(x) = 4.4x - 8615.7 if 1990 ? x ? 1992
D. 
f(x) = 122.7 if 1990 ? x ? 1992
Solve.2x3 + 36 ? 5x2 + 21x
A. [-3, 4]
B. [-3, ?)
C. (-?, -3] ? 
D. 
? [4, ?)
Factor the trinomial square and use the square root method to solve the equation.
A. 
B. 
C. 
D. 
E. 