The answer is 2 because the d/f is -5 so the term is bigger than 7
( x 1 + x 2 + x 3 + x 4 + x 5 ) / 5 = 89 Multiply both sides by 5
<span>x 1 + x 2 + x 3 + x 4 + x 5 = 89 * 5 = 445 </span>
<span>( x 1 + x 2 + x 3 + x 4 + x 5 + x 6 ) / 6 = 90 </span>
<span>( 445 + x 6 ) / 6 = 90 Multiply both sides by 6 </span>
<span>445 + x 6 = 6 * 90 = 540 </span>
<span>x 6 = 540 - 445 = 95</span>
The answer is 1 and 4 my friend. :) hope this helps.
Equation pi X r^2 first one = 158.37
second one 50.27
