Jorge starts 2 feet in front of a motion detector. For the first 3 seconds, Jorge walks away from the detector at a constant rate of 2 feet per second. Then he stands still for 4 seconds. Then he walks toward the motion detector at a constant rate, walking 8 feet in 6 seconds. Plz help

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/4zZs6GM

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step-by-step explanation:

i took the test: )

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