Carlos needs to paint the outside of the shed in his backyard, including its roof but not including its floor. A rectangular prism with a length of 8 feet, width of 5 feet, and height of 6 feet. What is the total area of the surfaces that he needs to paint? 214 feet squared 230 feet squared 300 feet squared 350 feet squared

It's 230 feet squared! (aka B)

Step-by-step explanation:

I just 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

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