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3 years ago

Can y’all please help !!!

Mathematics

1 answer:

Gemiola [76]3 years ago

4 0

Answer:

radius:5

center (2,-4)

Step-by-step explanation:

the equation of a circle is

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

where the center is (h,k) and the radius being r

this would mean that for your specific equation,

h=2

k=-4

and r= $\sqrt{25}$ = 5

so in order to graph the circle you start at (2,-4) and measure the distance of 5 units on your compass and graph it!

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2 years ago

How many triangles can be made with the lengths 4 centimeters 2 centimeters and 7 centimeters

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2 years ago

Type the correct answer in each box. Use numerals instead of words. If necessary, use/ for the fraction bar(s).The equation of a

alina1380 [7]

ANSWER

$\begin{gathered} center=(-3,-5) \\ r=4 \end{gathered}$

EXPLANATION

Given;

$x^2+y^2+6x+10y+18=0$

The standard equation of circle of a circle centered at (h,k) with radius r is;

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

Re-write the given equation in the standard form, we have;

$\begin{gathered} x^{2}+y^{2}+6x+10y+18=0 \\ x^{2}-6x+(\frac{6}{2})^{2}+y^{2}+10y+(\frac{10}{2})^{2}=-18+9+25 \\ (x-3)^2+(y-5)^2=4^2 \end{gathered}$

Hence, h=-3, k=-5, radius is 4

7 0

1 year ago

GIVING BRAINLIEST HELP ASAP! please tell me how you did it so I can learn it

Ne4ueva [31]

Answer:

Ok since u want to learn ill teach you :)

Get your 3 points and then your do this

Example= 3 power of 2 plus 5 power of 2

Then ur gonna add and get your answer hope this helps

(if u still don't get it ill just give u the answer)

7.2

Step-by-step explanation:

Hope u kinda got a good start on this :)

5 0

2 years ago