I need some help thank you

81

Step-by-step explanation:

9^2 means that you are squaring nine

when you square a number you multiply it by itself

so

9 x 9 =81

hope this helps :)

Step-by-step explanation:

9^2 means squaring 9 which equals to 81

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

answer: what statements

step-by-step explanation if you write the statements down then i could you.