After being rearranged and simplified, which of the following equations could
be solved using the quadratic formula? Check all that apply.
A. 5x + 4 = 3x2 - 2
B. x2 + x + x = 0
O C. - x2 + 4x + 7 = 2x2 - 9
OD. -3x2 +9x+3x? = 14 + x - 1

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.

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?