Add and simplify.
+ 
+ 
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.A projectile is fired with an initial velocity of 500 feet per second at an angle of 45° with the horizontal. In how many seconds will the projectile strike the ground? (Round your answer to the nearest tenth of a second.) The parametric equations for the path of the projectile are x = (500 cos 45°)t, and y = (500 sin 45°)t - 16t2.
A. 26.9 seconds B. 30.2 seconds C. 18.7 seconds D. 22.1 seconds
Approximate the logarithm to four decimal places using the change of base formula.log1/25
A. -2.3219 B. 0.3979 C. -0.4307 D. 1.0000
Solve.The price of a printer was reduced from $400 to $300. What was the percent of decrease?
A. 33.3% B. 30% C. 25% D. 75%
Find the sum, if it exists.
A. - 
B. 
C. 
D. Does not exist