If possible, find AB. & State the dimension of the result.

Step-by-step explanation:

A.B = A × B

Dimension of the resultant matrix is (3 × 3)

x/3-10=8

x/3=18

x=48

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