- Y^2-x=4 x^2+y^2=4 How do i use addition method if there is no x^2 for first system.?

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How long can I store water? If A' is the image of A and line k is a perpindicular bisector of AA', sketch the figure and describe the transformation? Given f(x)=2x+1/3 find f^-1(x)? Isnt our purpose as human to reproduce and die forget exploring life and other bs isn't this the purpose as a human? 1/2k when k = 3/4?