Consider the data below. 20, 40, 50, 50, 60, 80, 80, 80
Each value increases by 10. Determine whether each statement is true or false.
The mean increases by 10.
8
The median increases by 10.
The mode increases by 10.1
:: True
:: False
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the 3rd on is correct

step-by-step explanation:

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

i don't know

step-by-step explanation: