X= -12 and that’s you answer
27^(-2/3)=1/((∛27)^2)
=1/3^2
=1/9
I'm guessing the answer is B? I tried to isolate r and I got that result. Sorry if it's wrong!
The coordinates at the midpoint of any line are the averages of the coordinates at the end-points. So 7 has to be the average of 10 and k .
(1/2) (10 + k) = 7
5 + k/2 = 7
k/2 = 2
<em>k = 4</em>
