Will give award to whoever answers!   justify each step in solving 4x - 3 = 9 4x - 3 + 3 = 9 + 3 4x = 12 4x/4 = 12/4 x = 3

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

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Which two fractions are equivalent to 24/84? 6/42 and 2/7 6/21 and 2/6 12/42 and 3/7 12/42 and 2/7