Which two values of x are roots of the polynomial below ? x2+5x+7

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

Divide. write in the simplest form. 4 1/6 divided by 10

How many terms does the polynomial x^2 y^2 have