Answer:
n=81
Step-by-step explanation:
We have the equation [tex]-4n^{-1/2} =-4/9[/tex]. To isolate the variable n, we must first divide each side by -4. This would give us [tex]n^{-1/2}[/tex]=1/9. Now, we need to get rid of the exponent =-1/2. To do this, we must raise both sides of the equation by the reciprocal of -1/2, or -2. This gives us the equation [tex](n^{-1/2})^{-2}=1/9^{-2}[/tex], or simplified, n=81. Hope this helps!
