Simplify.
2 
A. 
B. - 
C. 
D. 
Answer: A
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Find the curvature of the space curve.r(t) = 
(1 + t)3/2i +
(1 - t)3/2j + 
tk
A. ? = 
B. ? = 
C. ? = 
D. ? = 
Solve the problem. Assume the x-axis is horizontal, the positive y-axis is vertical (opposite g), the ground is horizontal, and only the gravitational force acts on the objects. A projectile is fired at a speed of 1160 m/sec at an angle of 52°. How long will it take to get 29 km downrange? Round your answer to the nearest whole number.
A. 39 sec B. 43 sec C. It will never get that far downrange. D. 41 sec
Starting in the year 2000, the number of speeding tickets issued each year in Middletown is predicted to grow according to an exponential growth model. During the year 2000, Middletown issued 200 speeding tickets 
Every year thereafter, the number of speeding tickets issued is predicted to grow by 10%.According to the model, approximately how many speeding tickets are likely to be issued in Middletown during 2025?
A. 700 B. 1970 C. 450 D. 2167 E. none of these
Rewrite the rational expression with the indicated denominator.
= 
A. 
B. 
C. 
D. 