Answer:
Elimination process doesn't work. (Because of the )
Step-by-step explanation:
Firt, lets have both equations equal to 7.
y = -x + 7
y =
Multiply by -1 to the top equation so that we can cancel out the y's when adding the two equations together.
-y = x - 7
Now, we add the two equations together.
0 =
To find x, we have to use the factor.
It seems to be that you can't factor, so this system of equations can't be solved using the elimination process. (Can be solved using substitution)
Answer:
Length of diagonal of picture = 15.30 inches
Step-by-step explanation:
Given that:
Side lengths of picture frame = 12 inches by 9.5 inches
As the picture is rectangular, the diagonal will form hypotenuse of right angled triangle.
Using Pythagorean theorem;
a²+b²=c²
Putting the values in the theorem
Taking square root on both sides
Hence,
Length of diagonal of picture = 15.30 inches