Which angles are supplementary to each other?

<HBE and <EBF adds up to 180 degrees.

Step-by-step explanation:

As you can see in the image, <HBE and <EBF shares the same line and has a common point.  

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

19

step-by-step explanation: