Simplify the expression.e-ln x8
A. 
B. 
C. -x8
D. 8
Answer: B
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Write the expression in terms of sines and/or cosines, and then simplify.
- 
A. 1
B. 
C. 1 - tan2 ?
D. 
Solve.3x = 
A. 4
B. -4
C. 
D. 
Solve.A ball is thrown upward with an initial velocity of 14 meters per second from a cliff that is 
high. The height of the ball is given by the quadratic equation 
where h is in meters and t is the time in seconds since the ball was thrown. Find the time it takes the ball to hit the ground. Round your answer to the nearest tenth of a second.
A. 4.7 sec B. 5.1 sec C. 4.9 sec D. 6.9 sec
Solve the problem.
?The graph shows the amount of gas in a 200-gallon tank after x minutes have elapsed. (i) Is the gas entering or leaving the tank? (ii) Find the x-intercept and the y-intercept.
A. Entering; both intercepts are 0 B. Leaving; x-intercept is 0 and y-intercept is 200 C. Entering; x-intercept is 200 and y-intercept is 0 D. Leaving; both intercepts are 0