0.00204 written as standard form

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

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Graph the linear function using the slooe and y intercept