HELP DUDES The partial blueprint for an office building shows one outer wall and a perpendicular inner wall. Which of the following could be the equation of the inner wall, if the outer wall is represented by the equation y=(2/5x)-1y=(2/5x)−1?

Group of answer choices?

A.) y=(5/2x)−4

B.) y=(−2/5x)−4

C.) y=(−5/2x)−4

D.) y=(2/5x)-4

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

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

the answer is a. q=6,r=6√2

step-by-step explanation: