Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surfaceA projectile is fired at a speed of 1160 m/sec at an angle of 45°. How long will it take to get 29 km downrange? Round your answer to the nearest whole number.
A. 33 sec
B. 35 sec
C. 37 sec
D. It will never get that far downrange.
Answer: B
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Evaluate the integral.
A. -2 ln
+ C
B. ln
+ C
C. 
ln
+ C
D. 
ln
+ C
Solve the problem.In a certain year, world gold production was about 2400 metric tonnes and the United States produced 9 percent of that amount. How many pounds of gold did the United States produce? Round to the nearest pound.
A. 5,333,333 lb B. 388,800 lb C. 240 lb D. 480,000 lb
Refer to the double-bar graph below which shows the number of male and female athletes at a university over a four-year period. Solve the problem.
Find the increase in the number of male athletes from 2002 to 2004.
A. 125 B. 150 C. 175 D. 275
Factor the special products, which are the sum or difference of two perfect cubes.125a3 - 64b3
A. (5a - 4b)(25a2 + 16b2) B. (5a - 4b)(25a2 + 20ab + 16b2) C. (125a - 4b)(a2 + 20ab + 16b2) D. (5a + 4b2)(25a2 - 20ab + 16b2)