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zavuch27 [327]
3 years ago
15

Camilia wants to attach a string of lights around the perimeter of her patio for a party but does not want to include the side w

ith the steps. Write a linear expression that represents the length of the string in feet she will need. Then find the length if x = 4.
Mathematics
1 answer:
Helga [31]3 years ago
3 0
Be careful someone is going around posting a link to find peoples ip address !!!⚠️⚠️ COPY AND PASTE SPREAD THIS!!!!!!!!!
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alekssr [168]

Answer:

The current that produces maximum power is 3A

Step-by-step explanation:

Given

P(c) = 20(c - 3)^2

Required [Missing from the question]

The current that produces maximum power

First, we represent the function in standard form

P(c) = 20(c - 3)^2

P(c) = 20(c - 3)(c - 3)

Open bracket

P(c) = 20(c^2 -6c+ 9)

P(c) = 20c^2 -120c+ 180

The maximum value of c is:

Max(c) = \frac{-b}{2a}

Where:

f(x) = ax^2 + b^2 + c

By comparison: P(c) = 20c^2 -120c+ 180

a = 20

b = -120

c = 180

So, we have:

Max(c) = \frac{-b}{2a}

Max(c) = \frac{-(-120)}{2 * 20}

Max(c) = \frac{120}{40}

Max(c) = 3

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Answer:

Step-by-step explanation:

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Step-by-step explanation:

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