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Amanda [17]
3 years ago
5

Write the quadratic equation y=x^2-6+7 in vertex form

Mathematics
1 answer:
antoniya [11.8K]3 years ago
7 0
Half the x-coefficient is -3, so the equation needs to be rearranged into a form that looks like
  x² -6x +(-3)² + [something]
You can get there by adding and subtracting 9 from the original equation.
  y = x² -6x +9 +7 -9 . . . . . 9 added and subtracted
  y = (x² -6x +9) -2
The quantity in parentheses is a perfect square, so we can write the equation in the desired form as ...
  y = (x -3)² -2
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Step-by-step explanation:

Well how much money did they have to raise more to get to $950? It is $360.45. So now we take $360.45 and divide it by 2 and we get 180.225. But if we round 180.225 they would have to sell at least 181 bagels to raise $950 dollars.

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3 years ago
What is the unit value the 3 in 432 ?
lara [203]
<span><u><em>Answer:</em></u>
It represent the tens of the number, therefore, it's unit value is 30

<u><em>Explanation:</em></u>
The place value chart is added in the attached image.

<u>Checking this chart, we would find that:</u>
first digit from the right is the units of the number
second digit from the right is the tens of the number
third digit from the right is the hundreds of the number

Comparing this with the nuber given, we would find that the 3 is in the tens position. Therefore, it unit value is 30.

<u>Another way to answer this is by breaking the number given as follows:</u>
432 = 400 + 30 + 2
We can note that the unit value of the 3 is 30

Hope this helps :)</span>

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Step-by-step explanation:

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