An airport limousine has four passengers and stops at ten different hotels. what is the probability that two or more people will be staying at the same hotel? (assume that each person is just as likely to stay in one hotel as another.)
the probability that two or more people will be staying at the same hotel is

b

step-by-step explanation:

the answer would be c:   ax + b = ax + c

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

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