The figure shown is often used to prove the Pythagorean theorem. Part of the proof is showing that QRST is a square. The four sides of QRST are the same length. Which
explanation best completes the proof that QRST is a square?

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.