Evaluate the integral.
A. ex sin-1 (ex) + C
B. sin-1 (ex) + C
C. sec-1 (ex) + C
D. -2
+ C
Answer: B
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Let x be a number. Translate the following into an expression or an equation, as appropriate, and then simplify the expression or solve the equation.5 times a number added to -8 is equal to 13 times the number.
A. 13(5x - 8) = -8; -1 B. 5x + (-8) = 13x; -1 C. 5x + 8x = 13; 1 D. 5x - (-8) = 13x; 1
Solve the problem.Evaluate 
at (u, v) = (5, 3) for the function w(x, y) = xy2 - ln x; x = eu+v, y = uv.
A. -1 B. 675e8 - 1 C. 300e8 - 1 D. 375e8 - 1
Add or subtract as indicated. Write the answer in simplest form.
- 
A. 
B. 
C. 
D. 
Solve the application and answer with a complete sentence. Round to the nearest tenth of a percent if necessary.All 37 of the students in a mathematics class attended class on Monday. On Tuesday only 28 students attended. What was the percent of decrease?
A. There was a 75.7% decrease. B. There was a 24.3% decrease. C. There was a 67.9% decrease. D. There was a 32.1% decrease.