A weight-lifting machine has eight levels of difficulty. Level one is 25 pounds, and each additional level increases the weight by five pounds. Which is an ordered pair from this situation?
Оа
Ob
ос
Od
(9,65)
(2, 10)
(8,65)
(3, 35)

(8,65)

Step-by-step explanation:

Because if you were to write this as an equation it would be 25+5x=y than you plug in each variables until determined true.

slope is 35 and 20 miles is the y-intercept.

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)