Review the steps of the proof of the identity At which step was an error made?

step 1
step 2
step 3
step 4

Plz need answer now will mark which situations represent linear functions? check all that apply. a)the temperature rises and falls over the course of a day. temperature is a function of time. b)a baseball is hit into the outfield. the height of the ball is a function of time. c)a car goes 55 mph on the highway. distance is a function of time. d)a child grew 2 inches this year and 1 inch last year. height is a function of time. e)a movie director makes 2 movies per year. the number of movies is a function of the years.

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

What describes horizontal cross section of the right rectangle 6m 8m 5m