Angle a = 60
given that all angles of a triangle added together must equal 180
x = -20
-20+80=60
do it again for the other angle measurement
60+60+40=180
therefore, angle A is 60°
Answer:
Step-by-step explanation:
Terms are separated from one another by + and/or - signs. In this case neither appears, so the given expression constitutes a single term.
This is just combining like terms.....
6n2 - 5n2 + 7n2
n2 + 7n2
=8n2
Answer:
64 is the right answer of your question
