Answer:
C
Step-by-step explanation:
The parallel postulate is one of Euclid main axioms. Since it was accepted as self evident.
A is wrong, any two points can be drawn a straight line through. And straight lines exist in plane geometry.
B and D is wrong, the angle measures of a triangle must add up to 180 degrees in plane geometry.
Hello there!
If x = -3
Calculate x^2 - x
We need to replace x by 3
3^2 - 3
=3 * 3 - 3
= 9 - 3
= 6
I hope this helps!