William has a part-time job at the local drugstore. He earns eight dollars an hour he is paid weekly William works The following hours this week Monday three hours and 40 minutes Tuesday 2 1/2 hours Thursday four hours and 20 minutes and Saturday eight hours how much did he expect his paycheck to be for this week

answer: (-6,3)

step-by-step explanation:

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0

a

step-by-step explanation: