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uysha [10]
3 years ago
15

Please help fast ill give brainest

Mathematics
2 answers:
tia_tia [17]3 years ago
8 0

make a graph and put the weeks and the change wich is -20 a day until the end of the four weeks


:every week 4 the city gets -20 degrees celsius colder. This means that every 4 weeks the tempature decreases then goes bac kto its origonal

VLD [36.1K]3 years ago
8 0

4 weeks change = -20

1 week change = -5

If x is the temperature at the start of the week:

A: (4x-20)/4


B: Change per week = x-5 This means that the temperature goes down by 5 degrees per week, with x being the temperature at the start of the week.


Read more on Brainly.com - brainly.com/question/2626109#readmore

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mrs_skeptik [129]

Answer:

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Step-by-step explanation:

From the given information:

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As we know that

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Then after putting the values of revenue and cost in equation 1 we have:

Profit = (1500x - x²) - (1500 + 1000x)

Profit = 1500x - x² - 1500 - 1000x

Profit = -x² + 500x - 1500

We know that at the max or min the slope of the graph formed by the profit function will be zero, therefore we find the slope of profit function by taking the first derrivative w.r.t. x as under:

d(Profit)/dx = d/dx(-x² + 500x - 1500)

d(Profit)/dx = -2x + 500

By putting the above slope equal to zero we get:

d(Profit)/dx = -2x + 500 = 0

-2x + 500 = 0

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4 0
4 years ago
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Vlad [161]

Step-by-step explanation:

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Well, now it's checked because we used all the factors of the equation!

4 0
3 years ago
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Jobisdone [24]
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6 0
3 years ago
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Answer:

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