The function s = f(t) gives the position of a body moving on a coordinate line, with s in meters and t in seconds.s = 9t - t2, 0 ? t ? 9Find the body's displacement and average velocity for the given time interval.
A. 162 m, -9 m/sec
B. 162 m, 18 m/sec
C. -162 m, -18 m/sec
D. 0 m, 0 m/sec
Answer: D
You might also like to view...
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
During which hour did the temperature increase the most?
A. 10 a.m. to 11 a.m. B. 1 p.m. to 2 p.m. C. 9 a.m. to 10 a.m. D. 12 p.m. to 1 p.m.
Use the pictograph to answer the question.This pictograph shows projected sales of compact disks (CDs) for a popular rock band for seven consecutive years. 
? = 1000 CDsApproximately how many fewer CDs will be sold in 2001 than in 2003?
A. 4 CDs B. 5000 CDs C. 4000 CDs D. 6000 CDs
Determine any local or absolute extrema as indicated.Use the graph of f to estimate the local extrema.
A. No local maximum; no local minimum B. Local maximum: 1; local minimum: 4 C. Local maximum: approx. 3.66; local minimum: approx. -2.55 D. Local maximum: ?; local minimum: -?
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400