Can someone answer this for my homework

we are given

The angle is at right angled

It means that it's angle will be 90 degree

Since, these angles are part of right angle

so, their sum must be 90 degree

so, we get

now, we can solve for a

divide both sides by 7

and we get

.............Answer

(2,9)

i think thats the answer i checked it on google

for the first question it would be the second answer for the second question it would be the third answer and for the third question it would be the first answer

step-by-step explanation: