Sketch a residual plot. Be sure to label your axes. (b) Explain why a linear model is not appropriate for describing the relationship between practice time and percent of words recalled. (c) We used Fathom to transform the data in hopes of achieving linearity. The screen shots on the right show the results of two different transformations. Would an exponential model or a power model describe the relationship better

b

step-by-step explanation:

the word superfluous means unnecessary

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

i would say b) is your answer

sorry if im wrong

step-by-step explanation:

answer: the answer is 110