Answer pls The outside temperature (in degree Celcius) is modeled as a function of time. Consider this graph of the function. Find the average rate of change in temperature, measured as degrees Celcius per hour, between 7:30 and 9:30. (there might be more than one answer)

a. 6

b. 1/3

c. 3

d. 2/6

3 and 6

Step-by-step explanation:

i think 5 miles per hour

step-by-step explanation:

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