9- (-2)

Do I add or use KFC? ​

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

What dimensions can créate more than one triangle ?