You can rewrite the multiplication using properties of the exponents. We have that if the base is the same, the exponents are added. For this case, we have: Base = (- 4) Exponent = 1 Applying properties of exponents: (-4) (- 4) = ((- 4) ^ 1) ((- 4) ^ 1) = (- 4) ^ (1 + 1) = (- 4) ^ 2 answer: the expression is the same as (-4) ^ 2
-2 inches This is a simple average of 8 data points. All you need to do is add the value of all the data points together, then divide the sum by the number of data points. So (â’4 + â’6 + â’3 + â’1 + 0 + 2 + â’1 + â’3) / 8 = -16 / 8 = -2 S
