(x²)-³ =<u> 1 </u> = <u> 1 </u> = <u> 1 </u><u /> = <u> 1 </u>
(x²)³ (x²)(x²)(x²) x² + ²+ ² x^6
11/3 is bigger 1.27 because when you do 11/3 you get 3.66666666666666666667 which is clearly bigger than 1.27 so like I said 11/3 is bigger than 1.27.
Answer:
x = 21.3 repeating. so put the - on top of the 3 if you're writing it down
P=2l+2w
W=7+3l
So substitute into the original equation
P=2l + 2(7+3l)
78=2l +14 + 6l
-14 -14
—————-
64=8l
8=length
W=7+3l
= 7+3(8)
=7+24
=31
Check your work
Perimeter=8+8+31+31
=78
Hope this helps