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Aleksandr-060686 [28]
3 years ago
6

Find the center and radius for the circle defined by the equation: x2+y2+1/2x-2y-5=0.

Mathematics
1 answer:
iren2701 [21]3 years ago
6 0

Answer:

(x + [1/4])2 + (y - 1)2 = (97/16)

Step-by-step explanation:

(x + [1/4])2 + (y - 1)2 = (97/16)

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Can you please explain how to do this and give me the answer so next time I know how to do it. Square root with -15 in it and sq
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Answer:

15i and 4i

Step-by-step explanation:

i is an imaginary number also shown as\sqrt{-1} .  

Since we have \sqrt{-15}, thats 15*\sqrt{-1} .  Substitute \sqrt{-1} for i and we get 15*i or 15i.

We do the same for \sqrt{-4}.  This is 4*\sqrt{-1} or 4*i or 4i.

An easy way to do this is to take the negative inside the square root like \sqrt{-6} , take the absolute value -6 absolute value=6 and times it by i.  So now it becomes 6i

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A survey of 125 randomly selected teens ages 13 to 16 found that 33 of them play soccer, 27 of them play basketball, 24 of them
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The population of Mathloversville is given by the equation P=38e^0.095t , where t is the number of years from now. How long will
lys-0071 [83]

Answer:

Approximately 107years

Step-by-step explanation:

Given the population of Mathloversville modelled by the equation P=38e^0.095t where t is the number of years from now.

To find the time it will take the population to reach 1million from now, we will substitute P = 1,000,000 into the equation given

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Dividing both sides by 38

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Taking the ln of both sides

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10.18 = 0.095t

t = 10.18/0.095

t = 107.16years

It will take approximately 107years for the population to reach 1million

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