Pravat used parking cones to set up a rectangular football field in the park. However, when his friend Brian arrived at the park, he told Pravat that they should dilate the field by ¼. Which best describes the changes that Brendan and Poorav will make to the side lengths and interior angles of the football field?

a. Both the side lengths and the interior angles will change.
b. The interior angles will change, but the side lengths will remain the same.
c. The interior angles will remain the same, but the side lengths will change.
d. Neither interior angles nor side lengths will change.

answer: im sorry i dont get it

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)

12 dolars one is cheaper becasue 3 pairs is 6 means is sock is 2 while the 12 is cheaper

answer is  

c.

56

hope you get this right