Choose the expressions that are sums or differences of two cubes. 64 + a12b51 –t6 + u3v21 8h45 – k15 75 – n3p6 –27 – xz9

1. what is the phythaforean theorem? 2.what do we use it for? 1.what is the distance formula ? 2.what do we use it for?

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14