There are 7 Democrats and 6 Republicans on a local city council. A planning committee of 6 for affordable housing needs to be created. Find the probability that the group is made up of at least 4 Democrats.

1

step-by-step explanation:

it's the only multiple of both and the least

let's first notice, the center of the hyperbola is at the origin, since the focus points are equidistantly 3 units away from the origin, that also means that the distance "c" from the center to either focus is 3.

it should also be notable that, the traverse axis for this hyperbola is vertical, or namely over the y-axis and therefore, the positive fraction will be the one with y-variable.

the traverse "a" component or distance from the center to either vertex is not 2, is more than 2, so we can safely put it at √5 ≈ 2.24.