Answer:
The value of the given expression is -878.08.
Step-by-step explanation:
Here, the given question is INCOMPLETE.
The complete question is:
Evaluate the expression for a = 4, b = -5, and c = -7. 
Here, substitute the vale of a = 4, b = -5 and c = -7, we get:

Hence, the value of the given expression is -878.08.
Answer:
i think it is 1
Step-by-step explanation:
Answer:
f(x)= 3, g(x)=8
Step-by-step explanation:
if you plug 3 into the equation 2x-3, you have 6-3, which is 3.
If you plug 3 into the equation 3x-1, you have 9-1, which is 8
Second statement is more postulate you can't prove it, so the statement is clearly a thrm.
Answer:
angle A=30°
Step-by-step explanation:
