Prove by mathematical induction that, for all positive integers n, (5r+ +-2) = {n}(n+1)?(2n+1).
r=1

Find the roots of the equation below. x^2 - 6 + 9 = 0

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

Plz ( true - false) all triangles have interior angles whose measure sum to 90.