Asquare had a perimeter of 38 inches. we want to know the length of each side.

9.5

Step-by-step explanation:

Since a sqaure has all 4 equal sides, you can divide the square by 4 since there are 4 sides and it will be equal.

38 ÷ 4 = 9.5

Therefore, the length of each side will be 9.5. Hope this helps!

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb