Use the range rule of thumb to approximate the standard deviation.15, 42, 53, 7, 9, 12, 14, 28, 47
A. 11.5
B. 29.1
C. 16.6
D. 15.8
Answer: A
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Express the equation in exponential form.log 4 16 = 2
A. 42 = 16 B. 162 = 4 C. 24 = 16 D. 416 = 2
Given that the point 
lies on the line 
, find k.
?
A. 
B. 
C. ?
D. ?
E. ?
The position of car A and car B, starting out side by side and traveling along a straight road, is given by s = f(t) and s = g(t), respectively, where s is measured in feet and t is measured in seconds (see the accompanying figure).
?
?
Which car is traveling faster at t?1, t?2 and t?3?
?
A. Cars are traveling at the same speed at t?1, car B is traveling faster at t?2, car A is traveling faster at t?3 B. CarAis traveling faster at , carBis traveling faster at t?2, cars are traveling at the same speed at t?3 C. Car A is traveling faster at t?1, car B is traveling faster at t?2, car A is traveling faster at t?3 D. Car A is traveling faster at t?1, cars are traveling at the same speed at t?2, car B is traveling faster at t?3
Solve the problem.The logistic growth model 
represents the population of a species introduced into a new territory after t years. When will the population be 70?
A. 18.02 years B. 5.36 years C. 7.34 years D. 20 years