P = − x 2 + 150 x − 4400 p = - x 2 + 150 x - 4400 is a profit formula for a small business. Find the set of x x -values that will keep this profit positive. Answer in interval notation.

Step-by-step explanation:

We are given the following in the question:

where p gives the profit.

We want to keep the profit positive, thus

Thus, x should lie between 40 and 110 so that the profit is always positive.

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