Which pair of angles are vertical angles? ∠krc and ∠crh ∠mrc and ∠krm ∠ert and ∠mrc ∠kre and ∠ert lines k h, m t, and e c intersect at point r. lines k h and m t are perpendicular. line e c passes through angle k r t and angle m r h.

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95