Answer:
-2x^2 - 2
Step-by-step explanation:
(6x^2 + 3) - (5 + 8x^2)
-2x^2 + 3 - 5
-2x^2 - 2
19, cuz 4x19 is 76 and 72<76
To solve this problem first find the perimeter of the rectangle by using the formula P= 2(L+W).
Plug in your number and you get the number 28.
Now, because Noah is putting in a post at every yard and our answer is already in yards we are done.
Noah will need 28 post to build the dog run.
P=2(8+6)
P=2(14)
P=28
Hope this helps :-)
