Ican't figure this equation out, !
***the answer is 1 and -0.5, but i just can't figure out how to work it out.***

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

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.