The quadratic function y = -10x2 + 160x - 430 models a store's daily profit (y), in dollars, for selling t-shirts priced at x dollars. a the daily profit the company would make from the t-shirts if it gave the t-shirts away for free b the greatest daily profit the company could make from selling the t-shirts c a selling price that would result in the company making no profit from the t-shirts d the selling price that would result in the company making the greatest daily profit from the t-shirts

yo answer should be 6 if im not mistaken

step-by-step explanation:

c

step-by-step explanation:

i think because what else can be a sample of every member

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240