A company has found that the marginal cost (in thousands of dollars) to produce x central air conditioning units is Upper C prime (x )equals StartFraction 18 x Over 3 x squared plus e EndFraction , where x is the number of units produced. (a) Find the cost function, given that the company incurs a fixed cost of $15 comma 000 even if no units are built. (b) The company will seek a new source of investment income if the cost is more than $21 comma 000 to produce 5 units. Should they seek this new source?

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step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

the answer is b.6

step-by-step explanation: