Let o be the point of intersection of the diagonals of quadrilateral abcd. prove that abcd could be a trapezoid (has one pair of opposite sides parallel), if aaod=aboc.

Find the multiplicative inverse of 8-12i

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

2. using calculations based on a perpetual inventory system, determine the inventory balance altira would report in its august 31, 2021, balance sheet and the cost of goods sold it would report in its august 2021 income statement using the average cost method. (round "average cost per unit" to 2 decimal places.)