Prove the following statement using mathematical induction
p(a): 2 3 + 4 + (a - 1) a = 1/2 a(a+1) -1
clearly explain all the steps of your solution

Use the distance formula to determine the distance that point q is from r on the hypotenusebased on a 2-3 ratio.i need asap !

Acourgette seed and a pumpkin seed is planted p(courgette seed germinates) 4/5 and p(pumpkin seed germinates) = 1/6 what is the probability that both seds germinate

Solve the system of equations. y= 2x y= x^2 - 15