Answer:
ok so you see the equation at the top... you are going to "plug in" the number in the "in" row to get the "out number
Step-by-step explanation:
example
in: 4
-2(-4)+1
8+1
9
so for the out row under -4 you would put 9
-2(-3)+1
6+1
7
so for the out row under 3 you would put 7
Step-by-step explanation:
you collect like terms from both sides that is, the variables on one side and the constants on the other side
Plug in 12 for x:
y=42(12)-55
y=504-12
y=492
Hope that helps.
Square root 12 is your answer because you divide square root of 24 by 2 because long leg is always half shorter than hypotenuse