What is the theoretical probability that an even number will be rolled on a number cube?

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

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.