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zulaykaalex
28.07.2019 •
Mathematics
The cost, in dollars, for a doll company to produce x number of dolls is given by the function below.
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Ответ:
2) The minium cost corresponds to the vertex of the function
3) Rearrange the equation to the vertex form: d(x) = A(x - h)^2 + k, where the vertex is (h, k).
4) Rearrangment step by step:
Extract common factor 0.1 from the first two terms: 0.1 [ x^2 - 140x] + 750
Complete a perfect square:
0.1 [ (x - 70)^2 - 4900] + 750 = 0.1 (x - 70)^2 - 490 + 750 = 0.1(x - 70)^2 + 260
=> vertex = (70,260)
5) Conclusion the minium cost is $260 at x = 70
the minimum cost of production is $260 for 70 dolls.
Ответ:
S = 100,000 + 2,000n
Step-by-step explanation:
The salary went up $10,000 in 5 years, so the average raise seems to be $2000 per year. Of course, the initial salary is 100,000. Then ...
S = 100,000 + 2,000n