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TiliK225 [7]
2 years ago
11

What is the x-value of the vertex of f(x) = -x2 + 9x - 11 ?

Mathematics
2 answers:
Lemur [1.5K]2 years ago
7 0

Answer:

at the vertex x = 4.5

Step-by-step explanation:

Bogdan [553]2 years ago
6 0

Answer:

at the vertex x = 4.5

Step-by-step explanation:

hope this helps! :)

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Find the pair of numbers whose sum is 46 and whose product is a maximum.
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To solve this problem you must apply the proccedure shown below:

 1. Let's call:

 x the first number and and the other number 46-x

 2. Then, the product of both numbers is:

 y=x(46-x)

 3. When you apply the distributive property, you obtain:

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 4. As you can see, the coefficient of x^2 is negative, this means that the maximun value is at the vertex of the parabola.

 5. Then, you have:

 h=-b/2a
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 6.Then:

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 Therefore the answer is: 23 and 529.

 
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Step-by-step explanation:

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