What multiplies to be 42 and adds to be 23?

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

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

Find the missing factor. write your answer inexponential form.9^2=9^4×