Of all 40-year-old women, 1% have breast cancer. If a woman has breast cancer, a mammogram will give a positive indication for cancer 90% of the time. If a woman does not have breast cancer, a mammogram will give a positive indication for cancer 9% of the time. If a 40-year-old mammogram gives a positive indication for cancer, what is the probability that she has cancer?

9.17%

Step-by-step explanation:

The probability of a positive indication by a mammogram is given by the probability of positive indication when a woman has cancer, added to the probability of positive indication when a woman does not have cancer.

Given that the indication is positive, the probability that a woman actually has cancer is:

The probability that the randomly selected woman has cancer is 9.17%

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

idkit the do u know da way and ligma consumed ninja

step-by-step explanation: