1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marizza181 [45]
3 years ago
13

The equation of a circle in general form is ​ x2+y2+18x−36y+369=0 ​

Mathematics
2 answers:
swat323 years ago
7 0
You have to complete the square of (x²+18x+?) as well as for (y²-36y+?)

You will find: (x+9)² + (y-18)² = 36


& this is the standard equation requested
Ainat [17]3 years ago
7 0

Answer:

(x+9)^2+(y-18)^2=6^2

Step-by-step explanation:

We have been given equation of a circle in general form x^2+y^2+18x-36y+369=0. We are asked to find the equation of the circle in standard form.

We know that equation of a circle in standard form is of format: (x-h)^2+(y-k)^2=r^2, where (h,k) represents the center of the circle and r represents radius.

We will convert our given equation in standard form by completing the squares as shown below:

x^2+18x+y^2-36y+369-369=0-369    

x^2+18x+y^2-36y=-369

Adding (\frac{b}{2})^2 to both sides of our equation we will get,

(\frac{18}{2})^2=(9)^2=81

(\frac{36}{2})^2=(18)^2=324

x^2+18x+81+y^2-36y+324=-369+81+324

x^2+18x+81+y^2-36y+324=36    

(x+9)^2+(y-18)^2=6^2    

Therefore, the equation of the given circle in standard form would be (x+9)^2+(y-18)^2=6^2.

You might be interested in
Convert 0.5 to a ratio of integers
castortr0y [4]
Convert 0.5 into fraction and then into ratio

=>0.5

=>5/10

=>1/2

=>1:2

Hope it helped
5 0
3 years ago
A salad bar offers vegetable platters in 4 sizes (small, medium, large, and super-sized) and 6 different vegetables to choose fr
quester [9]

Answer: She could create 60 platters.

Step-by-step explanation:

Given: A salad bar offers vegetable platters in 4 sizes (small, medium, large, and super-sized) and 6 different vegetables to choose from.

Number of combinations of selecting <em>r</em> things from <em>n</em> things is given by:-

^nC_r=\dfrac{n!}{r!(n-r)!}

So, the number of combinations of selecting 2 different vegetables from 6 = ^6C_2=\dfrac{6!}{2!4!}=\dfrac{6\times5}{2}=15

Now, By Fundamental counting principle, the number of different platters she could create = (number of ways of selecting 2 different vegetables from 6) x (Number of sizes)

= 15 x 4

= 60

Hence, she could create 60 platters.

6 0
3 years ago
Please help me with #'s 5&amp;6
Fynjy0 [20]

5.\\(x+3)^2+7=-2\qquad|-7\\\\(x+3)^2=-9 < 0\\\\\text{NO REAL SOLUTION}\\\\(x+3)^2=-9\to x+3=\pm\sqrt{-9}\\\\x+3=-3i\ \vee\ x+3=3i\qquad|-3\\\\\boxed{x=-3-3i\ \vee\ x=-3+3i}

6.\\4(x-10)^2=25\qquad|:4\\\\(x-10)^2=\dfrac{25}{4}\to x-10=\pm\sqrt{\dfrac{25}{4}}\\\\x-10=-\dfrac{\sqrt{25}}{\sqrt4}\ \vee\ x-10=\dfrac{\sqrt{25}}{\sqrt4}\\\\x-10=-\dfrac{5}{2}\ \vee\ x-10=\dfrac{5}{2}\\\\x-10=-2.5\ \vee\ x-10=2.5\qquad|+10\\\\\boxed{x=7.5\ \vee\ x=12.5}

7 0
3 years ago
Can someone help me please:)
MakcuM [25]
I think it’s c and don’t try and open it
8 0
3 years ago
Help me again and explain how you got the answer thans
saveliy_v [14]
To find area so l x w x h
4 0
2 years ago
Other questions:
  • The seventh term of an arithmetic sequence is 10.2 and the twelfth term is 17.7. What is the common difference of the arithmetic
    7·1 answer
  • Write two word expressions for each algebraic expression.<br><br> 1) 4n<br> 2) r/2<br> 3) t-5
    8·2 answers
  • Write word problems that represent each way you can use a remainder in a division problem.include solutions.
    15·2 answers
  • A diver was exploring the ocean. The diver dove 32 ft. below sea level. Then dove another 45 ft. At what depth was the diver?
    11·1 answer
  • Help WHERE DID THE 10 come from
    8·1 answer
  • Who knows the answer?
    10·1 answer
  • The temperature changing every day by - 7/18 degrees FahrenheitWhat will be the change in the temperature after 3 days?
    9·1 answer
  • PLEASE help me simplify this distributive property question
    6·1 answer
  • The function h (x) = StartFraction 1 Over x squared + 1 EndFraction is the result of the composition f(g(x)). If g(x) = x2 + 1,
    5·2 answers
  • Which of the following relations are functions?^^
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!