Select the correct answer. NewspaperAdvertisement on Front Page ABC 89.4% JKL 86.3% PQR 80.5% TUV 88.7% XYZ 89.1% Total 82.4% The probabilities of different newspapers having an advertisement on the front page are given in the table. What is the chance of seeing an advertisement on the front page if the newspaper is JKL? A. 82.4% B. 86.3% C. 88.7% D. insufficient data

it c

Step-by-step explanation:

it's B. 86.3%, i got it right on plato

Step-by-step explanation:

Plato

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

step-by-step explanation: