In as, the speed of sound S, in meters per second,
is a linear function of the air temperature T, in
degrees Celsius, and is given by S(T) = 0.6T + 331.4.
Which of the following statements is the best
interpretation of the number 331.4 in this context?
0
The speed of sound, in meters per second, at 0 degrees Celsius.

true !

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

~dasgupta/mathbook/append17dec2k8.pdf