Let f(x, y) = ln(y + 2) + e2xy. Compute f(0, -1).
A. 1 + e
B. 0
C. e
D. 1
Answer: D
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Solve the problem.A projectile is fired from a height of 9.7 feet with an initial velocity of 124 ft/sec at an angle of 54° with the horizontal. The parametric equations for the path of the projectile are x = (124 cos 54°)t, and y = 9.7 + (124 sin 54°)t - 16t2,where x and y are in feet and t is in seconds. How long does it take the projectile to hit the ground? Round your answer to the nearest tenth of a second.
A. 12.7 seconds B. 6.3 seconds C. 6.4 seconds D. 8.1 seconds
What is the slope of the graph of the following equations?
a. 3x + y - 6 = 0 b. x + 4y - 8 = 0
Simplify the expression.
?
?
A. 2 B. 16 C. 4 D. 8 E. none of these
Perform the indicated operations and express your answer in the form a + bi. 
A. -2i
B. 2i
C. -i
D. ±2