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musickatia [10]
3 years ago
5

What is the value of -3 +4.5 - (-1.2)?

Mathematics
1 answer:
Mashutka [201]3 years ago
7 0
I believe the answer is 2.7.

Hope the helps!!!
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Rewrite the equation by completing the square 4x^2-4x+1=0
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Answer:

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Step-by-step explanation:

Given

4x² - 4x + 1 = 0

To complete the square the coefficient of the x² term must be 1

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add/subtract ( half the coefficient of the x- term )² to x² - x

4(x² + 2(- \frac{1}{2} )x + \frac{1}{4} - \frac{1}{4} ) + 1 = 0

4(x - \frac{1}{2} )² - 1 + 1 = 0

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