Sarah and nancy each drive 600 miles. sarah's average speed is represented by x miles per hour. what does the denominator of the rational expression 600x−4600x-4 mean in the context of this situation?

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

How do you write a paragraph proof to prove that the corresponding angles shown are congruent

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288