Find the sum using a number line.13 + (-13)
A. 0
B. 1
C. 26
D. -26
Answer: A
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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 32°. How long will it take to get 29 km downrange? Round your answer to the nearest whole number.
A. 29 sec B. 27 sec C. 31 sec D. It will never get that far downrange.
Find the probability.An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probability that there is at least one correct answer.
A. 
B. 
C. 
D. 
Write as a percent.1.596
A. 0.01596% B. 159.6% C. 0.1596% D. 1.596%
For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (cosh t)i + (sinh t)j + tk
A. a = (-sinh t)T + N
B. a = (sinh t)T + N
C. a = (
sinh t)T + N
D. a = (- 
sinh t)T + N