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vagabundo [1.1K]
3 years ago
10

What is the center of a circle whose equation is x2 + y2 + 4x – 8y + 11 = 0?

Mathematics
1 answer:
Valentin [98]3 years ago
7 0

Answer:

Step-by-step explanation:

eq. of circle is x²+y²+2gx+2fy+c=0

center=(-g,-k)

given eq. is x²+y²+4x-8y+11=0

comparing

2gx=4x

g=2

2fy=-8y

f=-4

center=(-2,4)

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Step-by-step explanation:

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Which function has zeros at x = 10 and x = 2? f(x) = x2 – 12x + 20 f(x) = x2 – 20x + 12 f(x) = 5x2 + 40x + 60 f(x) = 5x2 + 60x +
4vir4ik [10]
To find the correct function, just plug in 10 and 2 to see if the function equals zero with both numbers.

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The function that has zeros at both x=10 and x=2 is f(x)=x^2-12x+20.
5 0
2 years ago
Read 2 more answers
The probability that a region prone to hurricanes will be hit by a hurricane in any single year is 0.1 and independent of other
ludmilkaskok [199]

Answer:

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Step-by-step explanation:

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So the probability of a hurricane hit at least once in the next 5 years is  0.40951  

8 0
3 years ago
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