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Nesterboy [21]
3 years ago
5

Use completing the square to solve the equation x2 - 10x = -8.

Mathematics
1 answer:
Kay [80]3 years ago
7 0

Answer:

x^2 - 10x + 25 = 17

Step-by-step explanation:

Please use " ^ " to denote exponentation:

x^2 - 10x = -8

x^2 - 10x + 25 = 17

x^2 - 10x + 25 = -8

x^2 - 10x - 25 = -33

Begin with x^2 - 10x = -8.  Here's the process for completing the square:

1.  Take half of the coefficient of x and square the result:

    (1/2)(-10) = -5, and then (-5)^2 = + 25

2.  Add this 25 to the first two terms of x^2 - 10x = -8 and also to the      constant -8:    x^2 - 10x + 25 = -8 + 25, or     x^2 - 10x + 25 = 17

3.  Match this result to one of the given possible answers.  Turns out that the given possible answer matching our result is the first one:

x^2 - 10x + 25 = 17

     

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Explanation:


1) The program recommends a constant intensity for 3 visits, which is what the table shows:

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1             63%

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2) Hence, you have to determine the valid sets that meet the recommendation for the fourth, fifth, and six visits, which are the next three.


2) For the next three visits, the program recommensd increasing intensities.


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Therefore, those are the choices that apply.

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Answer:

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Step-by-step explanation:

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As you can see, Tan is the function we are looking for. So we plug in all known information into that equation.

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