The first term of an arithmetic sequence is 5, and the tenth term is 13. find the common difference
8/9
1.8
2

Me! #1 write an equation for the interior angles of this triangle that uses the triangle sum theorem. #2 what is the value of x? #3 what is the measure of #4 classify the triangle above as acute, obtuse, or right. state your reason in a complete sentence.

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .