The formula h=-16t^2+vt+c describes the height of an object thrown into the air, where h is the height, t is the time in seconds, v is the initial velocity, and c is the initial height. Use the formula to answer the question. A football is thrown with an upward velocity of 80ft/s from an initial height of 6 feet. How long will it take for the football to reach its maximum height? How far above the ground will it be?

What are the exclude value of mn+3m

Choose the more precise measurement. 26.4 cm or 8.39 cm

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.