Determine which of the following logarithms is expanded correctly.

A) log(jk2y = 7log i + 2logk
B) 10g 34 = log 24 – log17+logh
C) log 2xy = log2+ log x - 3logy
D) log 6(x-5) = log 6+3 log x - 3 log5

Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min