Use geometry to evaluate the integral from -2 to 6 of f(x) dx where f(x) = |x|, -2 I am torn between the answer being 6 and 10. Truly it should be 6, but since area is always positive, I think that it should be 10. If someone could please explain which one is right, that would be greatly appreciated. No fake answers.

hey seth! : )

i’m not 100% sure, but i think it’s b

hope this ya : p

miss u!

- nicole

answer:

c. the third graph

answer: 1inch=7days  

12inch=12*7=84days

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