Two angles of a triange measure 50 and 20 what is the measure of the third angle of the triangle

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

What is the upper quartile in the box plot?

Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i