*see photo*
in the diagram, the circle will be dilated by a scale factor of 3 about the origin. the points c, a, and b map to c’,a’, and b’ after the dilation.
what is the length of c’b’? use the distance formula to you decide.

oa 5 units
ob 15 units
oc 21 units
od 24 units
oe 45 units

the answer is c)8

step-by-step explanaction:

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60

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