PLEASE HELP IM RUNNING OUT OF TIME THANK YOU A person with type AB blood can donate red blood cells to people with the same blood type. About 12% of the US population has type AB blood. University High held a blood drive where 50 students donated blood.
A: What is the probability that EXACTLY 8 of the students had type AB blood?
B: What is the probability that at LEAST 8 of the students had type AB blood?

tangent

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

$113.42

i hope that is right.

step-by-step explanation:

you'll have to attache the image of the bar graph in order for us to answer : )

step-by-step explanation: