Solve.Two trains traveling on parallel tracks are going toward each other from a distance of 
kilometers. If one train is moving at 
kilometers per hour and the other is moving at 
kilometers per hour, after how many hours will the trains pass each other?
A. 6 hr.
B. 1 hr.
C. 5 hr.
D. 4 hr.
Answer: D
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Prove that 
for 
.
?
List the steps involved.
What will be an ideal response?
Write the first five terms of the sequence. (Assume that n begins with 1.)
A. -3, -2, -3, -4, -5 B. -2, -3, -4, -5, -6 C. -3, -4, -5, -6, -7 D. -3, -5, -7, -9, -11 E. 1, 0, -2, -2, -3
Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 
and the gorge is 336 ft deep, during what interval can the flare be seen?(h = -16t2 + v0t + h0.)
A. 3 < t < 7 B. 0 < t < 3 C. 9 < t < 13 D. 6 < t < 10
Find the x- and y-intercepts. If no x-intercepts exist, state so.f(x) = x2 - 6x + 9
A. (-3, 0), (0, 9) B. (9, 0), (0, -3) C. (9, 0), (0, 3) D. (3, 0), (0, 9)