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I think the answer is B

Step-by-step explanation:

The volume of a cylinder is

V=h·π·r²

If we look in the picture the height is 15 and the radius is 11 and if we look at the answers we see that each answer has π after it so that means we do not have to multiply by 3.14 or π

V=15·π·11²

V=15·121·π

V=1815·π

V=1815π

10 you would take 50/ .2

step-by-step explanation:

hello from mrbilldoesmath!

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

discussion:

in general, the factorization of a^3 + b^3 is

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

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

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

you,

mrb

(a + b) (a^2 - a b + b^2)