What is the value of 1/2 + (-5/6) + 1/4?
1. -7/12
2. -1/12
3. 1/12
4. 1 7/12

The answer is 4

Step-by-step explanation:

1/2+(-5/6)= 1 1/3

1 1/3 + 1/4= 1 7/12

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