Evaluate the integral using the given substitution.
dx , u = 3x - 1
A. - 3(3x - 1)-2 + C
B. (3x - 1)-2 + C
C. - 
(3x - 1)-2 + C
D. - 
(3x - 1)-4 + C
Answer: C
Mathematics
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A. 67 + 
B. 64 - 
C. 67 - 16
D. 67 + 16
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Answer the question.In how many ways can you answer the questions on an exam that consists of 10 multiple choice questions, each of which has 3 answer choices?
A. 59,889 B. 1000 C. 59,049 D. 58,819
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Write the decimal as a fraction or mixed number in lowest terms.0.88
A. 
B. 
C. 
D. 
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Find the number.The difference of a number and 7 is the same as 49 less the number.
A. 28 B. 21 C. -28 D. -21
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