Necesito explicación porfa: 1)factoriza y opera usando las propiedades de las potencias.
A)(12³×2)²÷2¹²=
B)400³×100²÷200 elevado a 5=
C)16³÷8³×2³
D)(-16)³÷[2³×(-4)]=

The diameter of a table is 5 feet. what is the circumference

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.