( x + 1 )² + 2 ( x + 1 ) ( x - 1)
calculations too​

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

What describes the formation of horizon b? a. forms at the surface b. features parent material c. undergoes the most change d. forms due to decomposed material i think the answer is c. undergoes the most change

Aball of mass 0.3kg is released from rest at a height of 8m.how fast is it going when it hits the ground? accleration due to gravity is g=9.8m/s