Answer:

Step-by-step explanation:

You have to prime factorise 81 and then you will get <u>9</u> as the answer.
Answer:
the minimum value of the given function is -4
Answer:
2) Angle 6 and Angle 5, Angle 3 and Angle 2
100% correct don't worry ;)
Step-by-step explanation:
6 & 5 and 2&3 are the adjacent angles