Karina was asked to find the quotient of 2−4i / 3+i. Her work is shown below. IDENTIFY in which step she made a mistake and EXPLAIN what the correct answer should be Step 1: 2−4i3−i / 3+i / 3+i
Step 2: 6+2i−12i−4i^2 / 9+3i−3i−i^2
Step 3: 2−10i / 8
Step 4: 1 / 4 − 5 / 4i

Which of those sequences is a geometric sequence

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

Aplot of land is shaped like a quadrilateral. fences are built on the diagonal to divide the area into 4 sections. what is vi to the nearest tenth? gv = 6.55fv = 5.84vh = 3.27vi = ?