A small pouch contains 8 black marbles, 6 white marbles, and 12 red marbles Find the probability of picking a red then a black marble if you do not replace the first Marble

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Which is the focus of a parabola with equation y2=4x