A researcher was interested in the mean wait time in South Carolina emergency rooms. 3 emergency rooms were randomly selected and all of the wait times were entered into the data set. This is an example of sampling.

Select one:
simple random
stratified
convenience
cluster

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations

Which equation can be simplified to find the inverse of y = 2x2^2