find the value of each expression when z=1,when z=2 and when z =3. then identify which expression are equivalent. 9z - 4-3z and 2(3z-2) and 9z-4z-3

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

2/3(-6y+9x) expand each expression using the distributive property

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe