The average high temperature in Phoenix in January is 50o F. Choose a cosine function representing the temperature over a 1 day cycle that begins at the low temperature.

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

20 ! brainliest ! add and simplify your answer.