$~~~~x^2-6xy=z-9y^2\\\\\implies x^2- 2\cdot x\cdot 3y + (3y)^2 - (3y)^2 = z-9y^2\\ \\\implies (x-3y)^2 -9y^2 = z-9y^2\\\\\implies (x-3y)^2 = z\\\\\implies x - 3y =\pm\sqrt z\\\\\implies x = 3y\pm\sqrt z$

4 0

3 years ago

I really need help with this question <br> n+5≤16

ahrayia [7]

Answer:

the answer would be anything 11 and under (11,10,9,8,7,6,5,4,3,2,1,0)

Step-by-step explanation:

This is because if n+5 is less than or equal to 16 then 11+5=16 so that is equal to and less than would be using any number less than 11

hope this helps ;)

3 0

3 years ago

Read 2 more answers

PLEASE HELP!!!<br> THIS IS DUE SOON

Hoochie [10]

Answer:

It's 65

Step-by-step explanation:

The reason is because the whole thing needs to be 180 right.

So one of the sides is 67

D would have to be 65 because of the angle and also it is less then F.

E is 48 because it is cut.

So the answer would be 65

I hope this helps!

Please mark me brainliest

7 0

4 years ago