Mathematics, 30.09.2019 21:30, princeton23124

20 a lamp manufacturer has daily production costs of c = 0.25n2 – 10n + 800, where c is the total cost in dollars for n lamps produced. what is a reasonable domain for this function, given the problem's context?
a) all integers
b) all real numbers
c) all positive integers
d) all positive real numbers

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