christa's fitness app shows that her average speed during a run was 5.777... miles per hour. Her friend are in an average of 5 2/3 mph. What fraction will allow Christa to compare for average speed to her friends average speed

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

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.