Which numbers from the list below are rational numbers? Your

3.4 with bar on top

square root of 16

fraction numerator negative 12 over denominator 7 end fraction

Can you draw an isosceles triangle with only one 80 degree angle?

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

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.