A triangle's sum must add to 180 degrees. If two of the angles, summed, equal 50 degrees, then the vertex angle must equal 130 degrees. So, the vertex angle equals 130 degrees.
The answer will mostly be true if you know the answers
Answer:
f(x) = -½ x - 5x (the 3rd option)
Step-by-step explanation:
f(4)= -½(4) - 5(4)
= -2 - 20
= -22
Answer:
1) 8x
2) 12x - 3y
Step-by-step explanation:
1) Both of them have a like term, so you can subtract them across
2) 10x + 2x = 12x, have a like term so you can add them across and 3y is the outlier so that stays alone.
Hope this helps!
Answer:
Step-by-step explanation:
Let be 
, which can be simplified solely by algebraic means. We proceed to describe all the steps needed for simplification:
1) Given.
2) 
Distributive and associative properties.
3) 
/Result
