(1,2) (5,-40) (10,-150) (15,-600) (20,-750) (25,-1300) What is the curve of best fit for the data shown? A) y = -2x^2 - 5x + 22 B) y = -2x^2 + 1.6x + 11 C) y = -54x^2 + 208x + 25 D) y = -0.9x^2 - 17x + 84

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.