Find the general form of the equation of the the circle.Center at the point (3, 5); tangent to y-axis
A. x2 + y2 - 6x - 10y + 43 = 0
B. x2 + y2 - 6x - 10y + 25 = 0
C. x2 + y2 - 6x - 10y + 9 = 0
D. x2 + y2 + 6x + 10y + 25 = 0
Answer: B
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Use the unit circle to determine the value of the given expression or state that it is undefined.tan (390°)
A. 
B. 
C. - 
D. 
Solve the problem.
Trains S and T are both traveling in the same direction. Their distances in miles North of Denver after x hours are computed by the functions fS and fT, respectively, and their graphs are shown in the figure for 
(i) How many hours elapse before the two trains are the same distance from Denver? (ii) How far are they from Denver when this occurs?
A. Train S is traveling slower.; 297 hours, 3.3 miles B. Train T is traveling slower.; 297 hours, 3.3 miles C. Train S is traveling slower.; 3.3 hours, 297 miles D. Train T is traveling slower.; 3.3 hours, 297 miles
Solve the system of equations (only real solutions) by the elimination method. Check your solutions.
A. {(2, 0), (-2, 0)} B. {(2, 0), (-2, 0), (2, -6), (-2, 6)} C. {(0, 2), (0, -2), (2, -6), (-2, 6)} D. {(2, -6), (-2, 6)}
Solve the problem. A wild animal preserve can support no more than 130 elephants. 49 elephants were known to be in the preserve in 1980. Assume that the rate of growth of the population is 
= 0.0007P(130 - P)where t is time in years. Find a formula for the elephant population in terms of t.
A. P = 
where t is the number of years since 1980
B. P = 
where t is the number of years since 1980
C. P = 
where t is the number of years since 1980
D. P = 
where t is the number of years since 1980