a rectangle is 3 times as long as it is wide. the perimeter is 60 cm. find the dimensions of the rectangle. round to the nearest tenth if necassary.

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

Construct the graph that models the given situation

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g