In rectangle abcd, bc=30 and ab=40. if diagonal ac and bd intersect at e, find the measure of be.

You will get 25 points an image of a rectangular prism is shown below: part a: a cross section of the prism is cut with a plane parallel to the base. what is the name of the shape created by the cross section? explain your answer. (5 points) part b: if a cross section of the prism is cut perpendicular to the base, what would be the shape of the resulting cross section? explain your answer. (5 points)

Which expression is equivalent to 5r6141 2r+st6

Simply 8x squared + 5(7x squared- x) - 2x =