Find the derivative of the function.f(x) = x5 log7 x
A. x4 + 5x4log7x
B. (ln 7) x4 + 5x4log7x
C. 
D. 
+ 5x4log7x
Answer: D
Mathematics
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Evaluate the double integral over the given region.
R: 0 ? x ? 1, 0 ? y ? 2
A. - 
B. 
C. 
D. 
Mathematics
Solve.Find two numbers whose product is 42 and the sum of whose reciprocals is 
A. 294 and 
B. 6 and 7
C. 252 and 
D. 1764 and 
Mathematics
Choose the most reasonable unit of measure.Horse weight 470 
(mg, g, kg)
A. mg B. g C. kg
Mathematics
Translate the problem to a system of equations, then solve using matrices.John has a jarful of quarters and nickels. There are 104 coins in the jar. The value of the coins is $14.60. How many of each type of coin?
A. 52 quarters and 52 nickels B. 57 quarters and 47 nickels C. 99 quarters and 5 nickels D. 47 quarters and 57 nickels
Mathematics