Solve for x
9x−8≥13
Give your answer as an improper fraction in its simplest form.

x ≥ 2.34

Step-by-step explanation:

The given inequality is :

9x−8≥13

We need to find a solution for the given inequality.

Adding 8 to both sides of the inequality.

9x−8+8≥13+8

9x ≥ 21

x ≥ 2.34

So, the value of x should be more than equal to 2.34.

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

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step-by-step explanation:

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