You can determine if a number is rational if it can be represented as a terminating or repeated decimal, but if it can not, then the number is irrational.
Yes, they are congruent. Congruent means that they are exactly equal in size and shape. The are both Right Triangles (you can tell by the 90 degree angle) and the lines on them are in the same spots, which means, line YZ is equal to line BC, and that line XZ is equal to line AC. I hope that helped! :)
Slope 2/1, y intercept is 6, equation is f(x)=6-2x
Step-by-step explanation:
z = 0 -7i ....................
