The following table displays data from a random sample of residents in Waterfall City.
Waterfall City
Annual Income Number of
Residents
500
Less than
$30,000
450
235
$30,001 to
$45,000
$45,001 to
$75,000
More than
$75,000
0
Which of the following can be inferred from the sample data?
Help pl

2x^2+5x+17

your welcome. : )

where is abdul's work? don't see that anywhere posted : /

step-by-step explanation:

d. all of the above

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