HELP PLS What is the sum of 7x/x^2 -4 and 2/x+2?
9/x
7x + 2/x^2-4
9x-4/x^2-4
7x+2/x^2+x-2

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle

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?

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?