Contractor a estimated a job would cost $54,000 to complete in 90 days. contractor b estimated he could complete the same job for $49,500 in 120 days. how much per day does each contractor charge

Contractor A estimated a job would cost $54,000 to complete in 90 days.

Per day charge of Contractor A = $54,000 / 90 = $ 600 / day

Contractor B estimated he could complete the same job for $49,500 in 120 days.

Per day charge of Contractor A = $49,500 / 90 = $ 412.50 / day

Therefore, Contractor A charges $ 600 per day and contractor B charges $412.50 per day.

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-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation: