On Tuesday, Beth hiked 215 2 1 5 miles. On Wednesday, she hiked 217 2 1 7 miles. What is a good estimate for the total number of miles Beth hiked on both days?

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

What additional information could be used to prove abc =mqr using sas? check all that apply.

Which of the following is the major negative aspect of crossover designs for research studies? a. prohibitive cost b. residual effects c-subject drepout d. incomplete randomization e. large sample size required