Answer: 69
Step-by-step explanation: a triangle adds up to 180 degrees. It is an isosceles triangle (2 sides are the same angle) 180-42=138 then do 138/2=69
Answer:
-10, -3, 5, 16
Step-by-step explanation:
even though the negative number (10) might seem big, but its not
All you need to know is that domain is x and range is y, like a graph.
Answer:
1. x ≤ 400
2. x ≥ 200
3. x < 20
Step-by-step explanation:
I am pretty sure that this is right. :)