Answer:
0=-13/6
Step-by-step explanation:
x = -15
Step-by-step explanation:
Collect like terms and simplify
Cross multiply
The answer is 60.
You must first solve what is in parentheses.
3 (20)
60
The answer would be 177.4
A) Here, sum of two non-adjacent angles: 52 + 25 = 77
Now, ∠3 = 180 - 77 [ sum of all angles in a triangle is 180 ]
so, ∠3 = 103
Now, ∠3 + ∠4 = 180 [ Supplementary angles ]
So, ∠4 = 180 - ∠3
∠4 = 180 - 103 = 77
∠4 = 77 [ which is sum of two non-adjacent angles ]
....Hence proved.
b) m∠4 = 77
[ Solved in previous section ]
Hope this helps!
