Match each expression to its equivalent standard form.
a. x^2 + x + 2
b. x^2 + 2x + 2
c. x^2 + 4
d. x^2 - 4x + 8
e. x^2 +16
f. x^2- 4x -4
1. (x + 2i)(x -2i)
2. (x - 2 + 2i)(x - 2 - 2i)
3. (x + 1 + i)(x + 1 - i)

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

This is about circle theorems. someone asap : (

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.