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Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

Is (root2 -2)^2 rational or irrational. show the steps and answer fast