R, s, and t are the vertices of one triangle. e, f, and d are the vertices of another triangle. mangler = 60, mangles = 80, manglef = 60, mangled = 40, rs = 4, and ef = 4. are the two triangles congruent? if yes, explain and tell which segment is congruent to modifying above r t with bar.

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

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.

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2