Multiply the following and express your answer in appropriate scientific notation:
(2.9x10^23)x(1.1x10^-43)

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10

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