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Alja [10]
3 years ago
14

Multiply (2x–3)(2x+3

Mathematics
1 answer:
MakcuM [25]3 years ago
7 0

Multiply (2x–3)(2x+3)

Answer:

<h2><u>4x^2-9</u></h2>
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The population of a city is 45,000 and decreases 2% each year. If the trend continues, what will the population be after 15 year
Sloan [31]
The answer is 31,500.
Let's clarify some things :
1% of 45,000 is 450
Maybe you're wondering why , it's actually very simple .
Just move the decimal to the left once if you want to find 10% , move the decimal twice if you want to find 1%.
We now that 1% equals 450. Then 2% equals to....
Well just add another 1% .
450 + 450 or 450 times 2
Which equals 900.
Now we want to find what's the population after 15 years.
900 times 15= 13,500
But that's not the answer ....
That's what is decreasing.
45,000 - 13,500= 31,500
That's why the answer is 31,500.
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If i am correct it should be 34

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Someone please help me
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1) The scale factor for the dilation is 2/3.


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