PLEASE HELP ITS A TEST I HAVE 23 MINUTES LEFT ΔABC is formed by points A(-10, 4), B(-3, -1), and C(-5, 11). Find the length of side AB

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g