Derstanding variable Relationships
A train is traveling at a speed of 60 miles per hour. What happens to the number of miles when the number of hours
changes?
When the number of hours increases, the number of miles decreases
When the number of hours increases, the number of miles increases
When the number of hours decreases, the number of miles increases
When the number of hours decreases, the number of miles stays the same

i’m here for points.

correct answer is b. 27/8

step-by-step explanation:

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

∡ eia and ∡ kij are congruent

step-by-step explanation: