The earths circumference measured at the equator is approximately 1.3148×10 to the power of 8 feet. what is the number written in 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

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6