The value of f(8) given that f(x)=6x2-7x+38

f(x) = 366.

Step-by-step explanation:

Basically what they're saying is they want you to put 8 as x in the equation, So, when you substitute 8 for x, you get:

f(x) = 6(8)² - 7(8) + 38.

The first thing you do according to PEMDAS is the exponent. So, since the exponent is attached to the 8, you will square 8 to get:

f(x) = 6(64) - 7(8) + 38.

Then, multiply.

f(x) = 384 - 56 + 38.

Combine like terms.

f(x) = 366.

Honestly, I'm unsure if this is right because the number is so big, lol.

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