Suppose that demand in period 1 was 7 units and the demand in period 2 was 9 units. assume that the forecast for period 1 was for 5 units. if the firm uses exponential smoothing with an alpha value of .20, what should be the forecast for period 3? (round answers to two decimal places.)

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.