<h3>Hello there i hope you are having a great day :) </h3><h3>Shop A Shop B
</h3><h3>55 36
</h3><h3>52 40
</h3><h3>50 34
</h3><h3>47 39
</h3><h3>51 44
</h3><h3>48 41
</h3><h3>53 40
</h3><h3>53 38</h3><h3>1) Mean for both coffee shops = Shop A = 409 ÷ 8 = 51.125 Shop B = 312 ÷ 8 = 39.</h3><h3>2) Mean for Shop B = 39</h3><h3>3) Mean for Shop A = 51.125</h3><h3>4) Median for Shop A = 52</h3><h3>5) Median for Shop B = 39</h3><h3>Hopefully this well help you :)</h3>
(x - 9)(x + 9) would give you x^2 - 81 when you get a plus and minus like that after you factor the middle term is canceled out so the answer would be (x - 9)^2
Now, we know that the centroid divides the medians in the 2 : 1 ratio that means the distance from the centroid to the vertex and the distance from the centroid to the opposite side remains in 2 : 1 ratio.