Find the integral. dx

A.  ln |4 + 6 ln x| + C
B.  ln |4 + 6 ln x| + C
C.  ln |4 + 6 ln x| + C
D.  ln |6 + 4 ln x| + C


Answer: C

Mathematics

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Convert the decimal form numeral to a numeral in the base indicated.2874 to base 8

A. 54728 B. 54278 C. 45278 D. 45728

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As part of a study on the metabolism of athletes, 400 college basketball players are randomly chosen and their weights taken. The distribution of the weights is approximately normal. The average weight is 215 pounds and the standard deviation is 15 pounds.Of the 400 players approximately how many weighed 200 pounds or less?

A. 32 B. 336 C. 64 D. 100 E. none of these

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Factor when possible.7x2 - 21xy - 28y2

A. 7(x - y)(x + 4y) B. (7x - 7y)(x + 4y) C. 7(x + y)(x - 4y) D. Prime

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Simplify the given expression.(n) + 6(n - 1) + 2(n) + 6 + n

A. 13n
B. n
C. 12n + 1
D. 12n

Mathematics