Provide an appropriate response. Assume that the random variable X is normally distributed, with mean u = 90 and standard
deviation o = 12. Compute the probability P(57 < X < 105).
0.8944
0.8914
0.8819
0.7888

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 in the world is this

step-by-step explanation:

there is no picture in order for this question to be answered