Answer:
Step-by-step explanation:

In any square the diagonal = a*sqrt(2), where a = length of any side (in a square all sides are equal in length)
*BTW sqrt(2) = radical 2... Just to be sure it's <span>intelligible...
</span>
Soo... if the diagonal = 8*sqrt(2) cm, then the side (a) = 8 cm.
:-)
Answer:
Below in bold.
Step-by-step explanation:
5x - 3y = 1
3x- y = 5 Multiply this equation by -3:
-9x + 3y = -15 Now add this equation to the first equation:
-4x = -14
x = -14/-4 = 3.5.
Now substitute for x in equation 1:
5(3.5) - 3y = 1
-3y = 1 - 17.5
-3y = -16.5
y = 5.5.
Answer:Commutative property
Step-by-step explanation: