company introduces a new product on a trial run in a city. They advertised the product on television and found the percentage P of people who bought the product after t ads had run satisfied the function 
(a) What percentage buys the product after the ad has been been run 1 time, 5 times, 20 times?
(b) Find the rate of change P?(t ).
(c) Sketch a graph of the function.
(a) 2.32%; 4.47%; 37.47%
(b) 
(c) 
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Find y ".y = 
tan(9x - 5)
A. 
sec2(9x - 5) tan(9x - 5)
B. 
sec(9x - 5)
C. 
sec2(9x - 5) tan(9x - 5)
D. 
sec2(9x - 5)
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
During which hour did the temperature increase the most?
A. 9 a.m. to 10 a.m. B. 12 p.m. to 1 p.m. C. 10 a.m. to 11 a.m. D. 1 p.m. to 2 p.m.
Provide an appropriate response. Find sin 43.6° to the nearest ten-thousandth.
A. 0.6896 B. -0.3731 C. 0.9523 D. 0.7242
Convert as indicated. Express the answer in decimal form when needed.12 kilometers per minute to meters per hour
A. 0.72 m/hr B. 200 m/hr C. 720,000 m/hr D. 5000 m/hr