Solve the problem.The top and base of a window are respectively 14 ft and 3 ft above the level of an observer's eyes. At what distance from the wall must the observer stand in order to make the angle subtended by the window equal to the angle of elevation of its base? Round to the nearest whole unit.
A. 10 ft
B. 8 ft
C. 4 ft
D. 6 ft
Answer: C
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Add or subtract. Express the answer as a mixed number.
A. 5
B. 6
C. 4
D. 5
Solve the problem.The time in hours it takes a satellite to complete an orbit around the earth varies directly as the radius of the orbit (from the center of the earth) and inversely as the orbital velocity. If a satellite completes an orbit 
above the earth in 
at a velocity of 
how long would it take a satellite to complete an orbit if it is at 
/> above the earth at a velocity of 
(Use 
as the radius of the earth.)
A. 32.43 hr
B. 4.93 hr
C. 199.52 hr
D. 19.95 hr
Solve the equation.625x = 3125
A. 
B. 
C. 
D. 
Identify and graph the polar equation.r = 4 sin(2?) 
A. 
rose with two petals
B. 
circle
C. 
lemniscate
D. 
rose with four petals