86 is the mean of 85, 91, 76, 85, and 93.
91 - 63 = 28
91 - 16 = 75
82.
To find the average, add the scores and divide the sum by how many scores you are adding: 81 + 76 + 91 + 73 + 79 = 400 ÷ 5 = 80.
(-15) + 91 = 76 [ -5 times (-15) ] + 1 = 76 (-1,140) / (-15) = 76
Actually I believe it is -116.5
Red is positive. If they are both black then the cable that is connected to ground is negative and the other cable is positive.
86 is the mean of 85, 91, 76, 85, and 93.
91 - 63 = 28
91 - 38 = 53
91 - 16 = 75
104 minus 13 is 91.
-61/3 + 105/6 - 91/4 = -19/3 +65/6 - 37/4 = -76/12 + 130/12 - 37/12 = -57/12 = -43/4
91 minus 8 is 83.
91
48