Abox contains 48 tickets for six door prizes. six tickets are drawn, and not replaced, to declare the winners. if serge purchases 8 tickets, determine the probability that he wins
a) the first prize
b) the first and second prizes
c) all six prizes

answer: x

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