Final answer:
To find the total cost incurred from producing the 11th through 20th units, substitute the values into the cost function and sum them up. The total cost incurred is $1610.
Step-by-step explanation:
To find the total cost incurred from producing the 11th through 20th units, we need to calculate the cost for each unit and then sum them up.
The marginal cost function given is C(x) = -0.6x + 70, where x is the number of widgets produced.
To find the cost for each unit, we can substitute x = 11, 12, 13, ..., 20 into the cost function:
C(11) = -0.6(11) + 70 = $63.40
C(12) = -0.6(12) + 70 = $62.80
...
C(20) = -0.6(20) + 70 = $58
Finally, we can sum up the costs for each unit:
Total cost = C(11) + C(12) + C(13) + ... + C(20) = $63.40 + $62.80 + ... + $58 = $1610