If you have 3 quarters, 5 dimes, and 2 nickels in your pocket what is the probability you will pick a nickel and then a dime without putting the nickel back in your pocket?

where are the options?

step-by-step explanation:

we need the options

step-by-step explanation:

2nd one in the first row is correct

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