Soon after taking an aspirin, a patient has absorbed 310 mg of the drug. If the amount of aspirin in the bloodstream decays exponentially with half being removed every 2 hours, find the amount of aspirin in the bloodstream after 9 hours.
?
Select the correct answer.
?
A. 1,370
B. 137
C. 50
D. 13.7
E. 2.21
Answer: D
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Provide an appropriate response.Consider a population that begins growing exponentially at a base rate of 6% per year and then follows a logistic growth pattern. If the carrying capacity is 90 million, find the actual growth rate when the population is 88 million.
A. 0.14% B. 0.13% C. 0.15% D. 0.12%
Solve.Jim and Tammi ran a distance of 15,840 feet. A mile is 5280 ft. How many miles did they run?
A. 6 mi B. 3 mi C. 4 mi D. 3 mi 2640 ft
Use the distributive property to multiply. Then, if possible, simplify the resulting expression.3(7 + m)
A. 21m B. 21 + m C. 21 + 7m D. 21 + 3m
Solve the problem.An object is propelled vertically upward from the top of a 288-foot building. The quadratic function 
models the ball's height above the ground, 
in feet, t seconds after it was thrown. How many seconds does it take until the object finally hits the ground? Round to the nearest tenth of a second if necessary.
A. 2 seconds B. 9.8 seconds C. 1.8 seconds D. 4 seconds