Find the derivative of the function.f(x) = x4 log5 x
A. x3 + 4x3log5x
B. 
+ 4x3log5x
C. (ln 5) x3 + 4x3log5x
D. 
Answer: B
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Write the fraction in decimal form. Round to the nearest thousandth.
?
?
A.
B.
C.
D.
E.
Solve the system by elimination.3x - y = 45x + y = 20
A. {(x, y)|3x - y = 4} B. {(5, 3)} C. {(3, 5)} D. ?
Express as a sum, difference, and product of logarithms, without using exponents.logb 
A. 
logb x + 
logb y - 4logb z
B. 
logb x - 
logb x + 4logb z
C. 
logb x3 + logb y7 - logb z8
D. 
logb x + 7logb y - 8logbz
Anne is standing on the corner tossing a coin. She decides she will toss it 12 times, each time walking 1 block north if it lands heads up and 1 block south if it lands tails up. Find the probability that she will end up in the indicated location.4 blocks south of her corner
A. 0.1933 B. 0.0625 C. 0.1208 D. 0.0537