GEOMETRY INCENTER AND CIRCUMCENTER HELP! I know the answer is 21 but can someone explain why?

I have a test tomorrow so I need to know how

answer:

3 bags of apples and 2 bags of oranges.

step-by-step explanation:

i belive those are the ones that are under 90 degreese.

40 minutes

step-by-step explanation:

add the time and multiply by 2

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