Solve the problem.A flagpole casts a shadow of 40 ft. Nearby, a 6-ft tree casts a shadow of 4 ft. What is the height of the flag pole?
A. 26.7 ft
B. 60 ft
C. 0.6 ft
D. 960 ft
Answer: B
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Solve the problem.Find the tangent to y = cot x at x = 
.
A. y = -2x + 
B. y = 2x + 1
C. y = -2x + 
+ 1
D. y = 2x - 
+ 1
Write the standard equation for the circle.Center at (22, 12), passing through the origin
A. (x - 12)2 + (y - 22)2 = 628 B. (x - 22)2 + (y - 12)2 = 628 C. (x - 12)2 + (y - 22)2 = 25 D. (x - 22)2 + (y - 12)2 = 25
Solve the problem.Every hour, the population of a certain country increases by about 9584. If this country's death rate is 2997 deaths per hour, what is this country's (hourly) birth rate?
A. 12,581 births per hour B. 12,083 births per hour C. 6587 births per hour D. 7506 births per hour
Solve the quadratic equation by completing the square.x2 + 8x - 2 = 0
A. -8 ± 3
B. -4 ± 9
C. -4 ± 3
D. 4 ± 3