Use a finite sum to estimate the average value of the function on the given interval by partitioning the interval and evaluating the function at the midpoints of the subintervals.f(x) = x2 - 4 on [-3, 7] divided into 5 subintervals
A. 
B. 40
C. 12
D. 8
Answer: D
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Solve.- 
x = 
A. 
B. - 
C. - 1
D. - 
Graph the compound inequality.x + y ? 2 and y ? 2
A. 
B. 
C. 
D. 
Solve the problem.While traveling in a car, the centrifugal force a passenger experiences as the car drives in a circle varies jointly as the mass of the passenger and the square of the speed of the car. If a passenger experiences a force of 225 newtons when the car is moving at a speed of 50 kilometers per hour and the passenger has a mass of 100 kilograms, find the force a passenger experiences when the car is moving at 60 kilometers per hour and the passenger has a mass of 60 kilograms.
A. 216 newtons B. 252 newtons C. 172.8 newtons D. 194.4 newtons
Factor.7 - 6t12 - t24
A. (t12 - 1)(t12 + 7) B. (1 - t12)(7 - t12) or -1(t12 - 1)(t12 - 7) C. (t12 - 1)(t12 - 7) D. (1 - t12)(7 + t12) or -1(t12 - 1)(t12 + 7)