Find the integral by using integration by parts or other techniques. Round the answer to four decimal places if necessary. 
A. x
- ln (x + 
) + C
B. 
+ 7 ln (x + 
) + C
C. 
- 7 ln (x + 
) + C
D. 
- 7 ln (x + 
) + C
Answer: C
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Solve the problem.A contractor is considering a sale that promises a profit of $31,000 with a probability of .7 or a loss (due to bad weather, strikes, and such) of $14,000 with a probability of .3. What is the expected profit?
A. $31,500 B. $17,000 C. $21,700 D. $17,500
Find the indicated limit.
?
?
Fill in the blank(s) with the appropriate word(s).
Add or subtract as indicated. Express the answer as a single polynomial in standard form.2(4x3 + x2 - 1) - 7(4x3 - 4x + 2)
A. -20x3 + x2 + 28x - 16 B. -20x3 + 2x2 + 28x - 16 C. -20x3 + 2x2 - 28x - 16 D. -20x3 + 2x2 + 28x + 16
Use the numeric integration feature on your calculator to find the integral.
A. 23.50167 B. None of the above is correct. C. 0.50167 D. 2.350167