Solve the problem.A wildlife researcher is monitoring a black bear that has a radio telemetry collar with a transmitting range of 16 miles. The researcher is in a research station with her receiver and tracking the bear's movements. If we put the origin of a coordinate system at the research station, what is the equation of all possible locations of the bear where the transmitter would be at its maximum range?
A. x2 + y2 = 32
B. x2 + y2 = 16
C. x2 - y2 = 16
D. x2 + y2 = 256
Answer: D
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A. 
B. 
C. 
D. 
Solve the problem.The formula 
represents the number of households in a certain city, N, in thousands, that have a computer, x years after 2005. According to the formula, in what year were there 145,000 households with computers in this city?
A. 2010 B. 2012 C. 2009 D. 2011
The height, h(x), of a punted rugby ball is given by h(x) =
, where x is the horizontal distance in feet from the point where the ball is punted. How far, horizontally, is the ball from the kicker when it is at its highest point?
a. 18 feet b. 23 feet c. 21 feet d. 39 feet e. 28 feet
Find the tenth term of the geometric sequence with a = 5 and r = 2.
A. tenth term = 2,560 B. tenth term = 5,120 C. tenth term = 2,552 D. tenth term = 2,558