Un número real no puede pertenecer a los racionales y a los irracionales a la vez?​

Which of the following are parts of a sphere

(08.01)consider the following pair of equations: x + y = −2 y = 2x + 10 if the two equations are graphed, at what point do the lines representing the two equations intersect? (−4, 2) (4, 2) (−2, 4) (2, 4)

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles