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g100num [7]
3 years ago
5

A parabola with vertex (h, k) and a vertical axis of symmetry is modeled by the equation y - k = a(x - h)2. Determine the vertex

for a parabola modeled by y - 4 =
1
2
(x + 1)2.
Mathematics
1 answer:
Readme [11.4K]3 years ago
6 0
Hello :
<span>y - 4 = (x+1)²
h = -1    and  k=4
the vertex is : A(-1 ; 4)</span>
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3 years ago
A woman wishes to rent a house within 9 miles of her work. If she lives x miles from her work, her transportation cost will be c
I am Lyosha [343]

Answer:

the woman has to live 1 mile from work to minimize the expenses

Step-by-step explanation:

Given the data in the question;

the distance within 9 miles ⇒ 0 < x > 9

Total costs Q = cx + 4c/( x + 1)

costs should be minimum  ⇒ dQ/dx = 0

⇒ d/dx [ cx + 4c/( x + 1) ] = 0

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take square root of both side

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x = 2 - 1

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Therefore, the woman has to live 1 mile from work to minimize the expenses

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Answer:

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Step-by-step explanation:

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4 0
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Answer:

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Step-by-step explanation:

3 0
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