One side of the triangle is half the longest side. the third side is 10 meters less than the longest side. the perimeter is 45 meters. find all three sides

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?

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