Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. Please show all work 12 + 42 + 72 + ... + (3n - 2)2 = quantity n times quantity six n squared minus three n minus one all divided by two

answer: 1) twenty-seven times y

              2) twenty-seven multiplied by y

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.

answer: two angles are called supplementary if they add up to 180°. example: the two angles (140° and 40°) are supplementary because they add up to 180°.

step-by-step explanation: