2\div7=2÷7=2, divided by, 7, equals ??Question mark Choose 1 (Choice A) A \dfrac97 7 9 ​ start fraction, 9, divided by, 7, end fraction (Choice B) B \dfrac72 2 7 ​ start fraction, 7, divided by, 2, end fraction (Choice C) C \dfrac27 7 2 ​ start fraction, 2, divided by, 7, end fraction (Choice D) D \dfrac29 9 2 ​

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step-by-step explanation:

ummm seems that u didnt post the attachement !

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

multiply each one by 3.14

step-by-step explanation: