Answer: (0,-15)
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Explanation:
Add up the x coordinates to get 1+(-1) = 0. Divide this sum in half to get 0/2 = 0. Therefore the x coordinate of the midpoint is 0.
Repeat for the y coordinates. First add the y coordinates to get -7+(-23) = -30. Then divide that result in half to get -30/2 = -15. So the y coordinate of the midpoint is -15.
Overall, the midpoint is (0,-15).
85×9.2=782
hope this helped
should it be 9 and 9. I hope this can help in some way! .3.
Answer:

Step-by-step explanation:
We have been given the expression:

We will use the property:

Here, 
So, we will get from the identity:

Hence, you are not right because you removed square rrot in final result rest is right.