The weight of one box is 10.32kg. Sue has 8 boxes of the same weight. What is the total weight of the 8 boxes?

82.6kg

Step-by-step explanation:

Because if you multiply 10.32 eight times you get 82.6 and you just put the kg at the end!

EASY AND SIMPLE YOUR WELCOME

the thermometer is precise but not accurate

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