What is true about the dilation?

it has a scale factor between zero and one and is a reduction.
it has a scale factor greater than one and is a reduction.
it has a scale factor between zero and one and is an enlargement.
it has a scale factor greater than one and is an enlargement.

Answer with explanation:

When the size of Preimage is greater than size of Image than dilation factor will be less than 1 and greater than zero.

And, when Size of preimage is greater than Size of Image than dilation factor will be greater than 1.

In the given diagram

Size of Preimage > Size of Image

Dilation Factor=0 <Dilation factor <1

Option A: It has a scale factor between zero and one and is a reduction.

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)

step-by-step explanation:

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