List the imaginary value of the number 3+2i.

Hello from MrBillDoesMath!

The imaginary part = 2i.

Discussion:

Generally, a complex number is written as "a + bi", where a and b are understood to be real number. The term "a" is called the "real part" and the term "b" is the imaginary part.

Regards,  

MrB

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