Answer:
The answer is 5 .
Step-by-step explanation:
You have to substitute the values of a, b and c into the expression :

Let a = 5,
Let b = 5,
Let c = 10,



Answer:
4x^2+20x+25
Step-by-step explanation:
(2x+5)^2 = (2x+5) (2x+5)
Using the foil method : 2x(2x) = 4x^2
(2x) (5) = 10x
(2x) (5) = 10x
5 (5) = 25
Combine like terms
Check the picture below.
recall that negative angles go "clockwise".
Y<-60
hope this helps and good luck;)