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Dmitriy789 [7]
3 years ago
15

Write x2 - 12x + 8 in vertex form. a. (x-6)2 -28 = 0 b. (x-4)2 - 11 = 0 c. (x-4)2 - 13 d. (x-4)2 - 15

Mathematics
1 answer:
g100num [7]3 years ago
3 0

y = x² - 12x + 8

First step is to move the 8 to the other side by subtract 8 from both sides. This gives you:

y - 8 = x² - 12x

Now we complete the square. Divide the b term (in this case 12) by 2, then square the result. You will then add that square to both sides. This gives you:

y - 8 + 36 = x² - 12x + 36

Combine like terms and factor:

y + 28 = (x - 6)²

y = (x - 6)² - 28. Option A should be your answer.

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3 years ago
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And we can use the z score formula given by;

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And if we find the z score for the value of 0.872 we got:

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6 0
3 years ago
Answer to this question?
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:)
5 0
3 years ago
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