According to the associative property of equality: (a + b) + c = a + (b + c) we can see that the parenthesis do not mean anything when we are only doing addition.
So answers 1. and 3. are correct.
<em>Thanks Associative Property!</em>
Step-by-step explanation:
General equation of circle:
(x - a)² + (y - b)² = r².
Therefore we have x² + (y - 3.5)² = 12.25.
1+4=5
2+5=7
3+6=9
8+11=19
hope this helped:)
Answer:
- 
Step-by-step explanation:
= 
( cross- multiply )
6x = 5y ( divide both sides by 6 )
x = y
Then
← substitute x = y into the expression
= 
= 
= 
= 
× - 
= -
