Ned took a test with 20 questions. He lost 5 points for each of the 6 questions he got wrong and earned an additional 12 points for answering a bonus question correctly. How many points did Ned receive or lose overall? The expression is

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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

you'll just earn points here

step-by-step explanation:

10 b/c 5*2 =10

step-by-step explanation: