Select the correct answer. Consider this quadratic equation.
x2 + 1 = 2x-3
Which expression correctly sets up the quadratic formula?
A. -(-2) = V(-2)2 – 4(1)(4)
2(1)
B.-(-2) + 2)2 – (1)(4)
2(2)
c. -2 V2)2 – 4(1)(4)
2(1)
-2 (2)2 - 4(1)(-2)
2(1)
D.

Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)

What is the product? a-3/15a × 5/a-3

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?