The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. v (ft/sec)
What is the body's acceleration when t = 8 sec?
A. -2 ft/sec2
B. 1.67 ft/sec2
C. 1 ft/sec2
D. 0 ft/sec2
Answer: B
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Solve.A wastewater treatment operator uses the formula A = 8.34FC to determine the amount A of chlorine in pounds to add to a basin. The flow F through the basin is in millions of gallons per day, and the desired concentration C of chlorine is in parts per million. If 2200 pounds of chlorine is added to a basin with a flow rate of 10.4 million gallons per day, what would be the resulting concentration?
A. 25.36 ppm B. 19.08 ppm C. 211.54 ppm D. 117.39 ppm
Find the area of the circle. Use 3.14 or 
for ? as indicated.Use 3.14 for ?.
A. 18.84785 yd2 B. 30.772 yd2 C. 15.386 yd2 D. 75.3914 yd2
The graph of the function f is shown below. Match the function g with the correct graph.g(x) = f(-x) + 1
A. 
B. 
C. 
D. 
Find the limit.
A. 
B. Does not exist
C. 1
D. 0