)is on the line 2x – 7y = 0. find the other half of the coordinate.

The coordinate of (x,6) is 21 such that the given point lies on line 2x – 7y = 0.

Step-by-step explanation:

Given :  Equation of line 2x – 7y = 0

We have to find the x coordinate of (x,6) such that  the given point lies on line 2x – 7y = 0.

Since, the point lies on the  line 2x – 7y = 0.

So (x, 6) satisfies the equation of  line 2x – 7y = 0.

Put x = x and y =6, we have,

2x -7(6) = 0

2x = 42

⇒ x = 21

Thus, The  coordinate of (x,6) is 21 such that the given point lies on line 2x – 7y = 0.

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!