F(x) = 2x2 + 1 and g(x) = x2 – 7, find (f – g)(x).

easy 20 points

Which expression gives the area of the triangle shown below

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work:

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.