c. A room is of length 20m and wide 15m. If the area of 4 walls of the room is 840m², find the height of the room.

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

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?