Find the quadratic approximation of f at x = 0.f(x) = 
A. Q(x) = 4 + 
B. Q(x) = 4 - 
C. Q(x) = 4 - 
D. Q(x) = 4 + 
Answer: C
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Solve the problem.For the study described below, identify the sample statistic.A bank manager wants to know the average amount of time customers of his bank have to wait in line. 300 customers were polled and asked their average wait time at the bank.
A. The percentage of dissatisfied customers among all of the bank's customers. B. The average wait time for all of the bank's customers C. The 300 people polled D. The average wait time for the 300 customers polled
Solve the equation.-12x = -144
A. -132 B. 132 C. 12 D. -12
Multiply.10(-1)(4)(-8)
A. 320 B. 14 C. -320 D. 42
Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.2.3x - 0.5y - 3.2z = -4.94.9x - 7.0y - 0.3z = -5.02.5x + 0.7y - 4.5z = 0.3
A. (29.7, 20.7, 19.7) B. (119.0, 82.8, 78.7) C. (238.0, 165.6, 157.4) D. (59.5, 41.4, 39.4)