Answer:
-20
Step-by-step explanation:
Replace X by 3
f(3) = -2(3)^2+ (3)-5 = -20
Answer:
x=30
Step-by-step explanation:
it is an equilateral triangle, so all angles are the same. each angle is 60 degrees. 60/2 is 30, so 30 degrees is the answer.
Answer:
Infinatly many solutions
Step-by-step explanation:
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Answer:
x=2x, y=5y
Step-by-step explanation:
180-108=72+120=192,360-192=168