Simplify.
A. 
B. 
C. 
D. 
Answer: C
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Find the area.Find the area of the region in the first quadrant between the curve y = e-2x and the x-axis.
A. 
e
B. 
C. 2
D. 1
Find the area under the normal curve for the condition.Find the percent of the total area under the curve between z = -2.36 and z = -0.14.
A. 43.5% B. 43.1% C. 43.4% D. 43.9%
Which of the following is a theme from the research literature on student motivation?
a. Motivations are learned b. Motivation hinges on students' interpretation of their successes and failures. c. Intrinsic motivation is better than engagement for a reward. d. Inequities are influenced by how different groups are taught to view mathematics. e. All of the above
Calculate the arc length of the indicated portion of the curve r(t).Following the curve r(t) = 5ti + (12 cos t)j + (12 sin t)k in the direction of increasing of arc length, find the point that lies 104? units away from the point where 
A. (40?, 0, 0) B. (40?, 12, 0) C. (40?, 0, 12) D. (40, 12, 0)