The set of complex numbers is the set of all numbers of the form a + bi, where a and b are real numbers and i=

When the ball has traveled a distance of

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

Find the area of the regular hexagon if a side is 20 cm.