Question 335621
Use the midpoint formula,
{{{xm=(x1+x2)/2=(-3+5)/2}}}
{{{ym=(y1+y2)/2=(2+8)/2}}}
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Then use the distance formula to find st,
{{{D^2=(x1-x2)^2+(y1-y2)^2}}}
{{{D=sqrt((-3-5)^2+(2-8)^2))}}}
Complete the calculations to get the answers.