Kimberly plans to weave a new rug for her dining room in the shape of a circle. she has a limited amount of material, so the circumference of the rug must be 48 inches or less. kimberly wants the rug to cover an area of 324 square inches or more

answer: ok

step-by-step explanation:

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gimmee one of those gold crowns!

~coco

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