Consider the equation 2x² + 11x = 12. Why is 2 the best value by which to multiply both sides of the equation before completing the square?

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.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer