Yes because if you add forty and thirty that equals seventy plus twenty is 90 which is a right angle
It would not form a right triangle because if you square 20, 30, 40, and add 20^2 and 30^2 it would become 1,300, but 40^2 is 1,600 which does not make it a right triangle according to the Pythagorean Theorem.
through just a quick inspection, one can see that the graph of this cubing function starts in quadrant iii and ends in quadrant i. when x = 0, y = 3, so the y-intercept is (0, 3).
if graphs are part of the problem statement, share them. .
the answer to the expression is 83