ABCD is a parallelogram. The diagonals of ABCD intersect at O.
B
b)
b.
OA=a
and
OB = b
c)
o
a) Express the vector CA in terms of a.
a
А
D
b) Express the vector AB in terms of a and b.
c) Express the vector BC in terms of a and b.

What is the measure of angle tvu shown in the diagram below

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.