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Alex
3 years ago
15

I NEED HELP PLEASE ?!!

Mathematics
1 answer:
Fittoniya [83]3 years ago
5 0
The circle equation is in the format (x – h)² + (y – k)² = r², with the center being at the point (h, k) and the radius being "r".

QUESTION 11.
Equation x²+y²+10x-14y-7 =0 can be rewritten as: x²+10x+25 + y² -14y + 49 -7 - 25 - 49=0
It can be factories as (x + 5)² + (y – 7)² = 9²

Therefore the radius equals 9 and the center is (-5,7)

QUESTION 12.
From equation (x + 4)² + y² = 121

The radius equals √121 = 11 and the center is (-4,0)

QUESTION 13.
As there are missing information in the question, I can't assist. However, you can use the general circle equation (x – h)² + (y – k)² = r² to solve the question.

Finally equations 14 & 15 aren't linear.

Hope that helps you :)
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emmainna [20.7K]
To solve this equation we must first plug in 5 for x.

\frac{1}{3}<span> (5 - 4x)
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The next step would be to multiply 4 by 5 to get rid of the parenthesis within our main parenthesis.

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The next step would be to subtract both of the numbers within the parenthesis.

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Now we must multiply.

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8 0
3 years ago
Pedro has twice as many carrots as Martha, who has the same number of carrots as Oliver. If Pedro gives 5 carrots to Oliver, the
choli [55]
"Pedro has twice as many carrots as Martha:"
p = 2m
<span>
"If Pedro gives 5 carrots to Oliver," 
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</span>
m = 3(p - 5)

We know p in terms of m, so substitute it in:
m = 3(2m - 5)

Distribute the 3:
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m-6m=-15
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m = -15/-5

m = 3

The answer is c) 3  







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♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

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