Which is the equation with the narrowest parabola? (a) y = x2 - x - 6 (b) y = 5x2 + 9x + 8 (c) y = -x2 - 6x – 9 (d) y = -6x2 - 5

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?