This is just a matter of subbing (1,2) into ur equations to see if they make the equations true
(1,2)...x = 1 and y = 2
y = -2x + 4 7x - 2y = 3
2 = -2(1) + 4 7(1) - 2(2) = 3
2 = -2 + 4 7 - 4 = 3
2 = 2 (correct) 3 = 3 (correct)
when (1,2) is subbed into the first equation, the equation is true
when (1,2) is subbed into the 2nd equation, the equation is true
the ordered pair (1,2) is a solution to the system of equations...and it is a solution to the system because it satisfies both equations...if it would have only satisfied one of them, it would not be a solution to the system of equations
Answer:
h = 7.0 inches
Step-by-step explanation:
We are given
, where
and 
Sub in these values into the equation,


Square both sides to get rid of the square root,

Collect like terms,

Square root both sides to get h by itself,
inches (1 d.p.)
Hope this helped!!
Answer:
Your mom, plus your papa= A gay child (you) LOL
Step-by-step explanation: