Question 9(multiple choice worth 1 points) (05.02 mc) the figure shows a parallelogram inside a rectangle outline: a parallelogram is shown within a rectangle. the length of the rectangle is 3 over 5 foot, and the width of the rectangle is 2 over 5 foot. the two equal bases of the triangles outside the parallelogram are labeled 1 over 5 foot. what is the area of the parallelogram? 1 over 25 square foot 11 over 25 square foot 3 over 25 square foot 4 over 25 square foot

It would definitely be easier to answer if u attach the figure ! :)

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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