C(x) is the total cost of producing x units of a particular

Last updated: 7/18/2022

C(x) is the total cost of producing x units of a particular commodity. Assume C(x) is in dollars. Use marginal cost to estimate the cost of producing the 21st unit. What is the actual cost of producing the 21st unit? C(x) = 1/2 x² +57 estimated cost = $20.50; actual cost = $19.50 estimated cost = $20.00; actual cost $20.50 estimated cost = $20.00; actual cost = $19.50 estimated cost = $20.50; actual cost = $20.00