The Teacher is grading spelling tests for a 2nd grade class. Out of 8 words, most students only got 3 correct. What is the percent of correct answers?

35% because 4 would be 50% so its prob around 35 or 40

by doing 3/8, you will get 37.5 percent

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