If you're looking to find X, then X would equal 16, since 16 minus 3 would equal 13
She is incorrect. It doesn’t matter what sides you label a or b but c matters. The longest side (the hypotenuse) is always c.
Answer:

Step-by-step explanation:
The open circle means that the point is not included in the solution set, and the arrow pointing left means that all numbers less than -2 are members.
In set-builder notation, each term has a special meaning. The braces enclose the members of the set.
Here's how you translate the notation,

Answer:
ok
Step-by-step explanation:
Answer:
1. 130
2. 152
Step-by-step explanation: