Adress usually sells for $62.00. if the dress is 30% off, what is the total price of the dress (excluding tax)?
a.
$43.40
b.
$32.00
c.
$80.60
d.
$49.60

Your best answer choice is A). because 62.00 x 30% = 18.6. Then 62.00 - 18.60 = 43.40

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

how many friends does he have? i think some of the information got cut off in the problem.