A classic physics problem states that if a projectile is shot vertically up into the air with an initial velocity of 177 feet per second from an initial height of 133 feet off the ground, then the height of the projectile, h, in feet, t seconds after it's shot is given by the equation:

h=−16t^2+177t+133

Find the two points in time when the object is 172 feet above the ground. Round your answers to the nearest hundredth of a second (two decimal places).

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.