3 years ago

Please help I don't understand my math homework

Mathematics

2 answers:

Ray Of Light [21]3 years ago

6 0

The answer is 4 and 3/5.
Hope this helps! :D

zepelin [54]3 years ago

5 0

5 - 2/3 = 15/3 - 2/3 = 13/3.

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Write down the multiples of each number vertically and horizontally

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Step-by-step explanation:

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3 years ago

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64x15,18 C is the right answer

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3 years ago

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3 years ago

Maisie has saved up $50 to buy concert tickets, but the tickets cost $125. She is able to earn $15 per day by walking her neighb

snow_tiger [21]

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4 years ago

Read 2 more answers

The equation of a circle is x^2+y^2-2x +6y-6=0. Find the center and radius of the circle by completing the square.you must inclu

zavuch27 [327]

Answer:

The center of the circle is at;

$(1,-3)$

The radius of the circle is;

$r=4$

Explanation:

Given the equation of circle;

$x^2+y^2-2x+6y-6=0$

we want to re-write it in the form;

$(x-h)^2+(y-k)^2=r^2$

where;

$\begin{gathered} (h,k)\text{ is the center of the circle} \\ r\text{ is the radius} \end{gathered}$

Applying Completing the square method;

$\begin{gathered} x^2+y^2-2x+6y-6=0 \\ x^2-2x+1+y^2+6y+9=6+1+9 \\ (x-1)^2+(y+3)^2=16 \\ (x-1)^2+(y+3)^2=4^2 \end{gathered}$

comparing the derived equation to the general form we have;

$\begin{gathered} h=1 \\ k=-3 \\ r=4 \end{gathered}$

Therefore;

The center of the circle is at;

$(1,-3)$

The radius of the circle is;

$r=4$

6 0

1 year ago