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3 years ago

Choose the fractions that are greater than 1/2.

Mathematics

1 answer:

Gennadij [26K]3 years ago

3 0

5/8
6/3
7/10
These are all the answers 4/8 is 1/2 and 5/8 is over it there is no half of 3 but 6/3 is 2 and 2 is a whole number it's over 1/2
5/10=1/2 and 7/10 is over it 1/4 isn't an answer because 2/4=1/2 6/12=1/2 but it says over 1/2 and finally 5/12 isn't it because like I said above 6/12 is 1/2

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3 years ago

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What number would you add to the equation below to complete the square?x2 + 4x = 0?

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------------------------------------------------------------------
Equation
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x² + 4x = 0

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Add a constant
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x² + 4x + (4/2)² - (4/2)² = 0 ← Add 2² to form perfect square

------------------------------------------------------------------
Evaluate bracket
------------------------------------------------------------------
x² + 4x + 2² - 2² = 0

------------------------------------------------------------------
Form the perfect square
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(x + 2)² = 4

------------------------------------------------------------------
Square root both sides
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(x+2) = $\pm$ √4

------------------------------------------------------------------
Evaluate the square root
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(x+2) = $\pm$ 2

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Solve x
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x = 2 - 2 or x = -2 - 2

x = 0 or -4

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Answer: The constant to add is 4 and the value of x = 0 or -4
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