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
oksian1 [2.3K]
2 years ago
12

Help 30 point question!

Mathematics
1 answer:
Gennadij [26K]2 years ago
4 0

You're given 3 points (<em>x</em>, <em>y</em>) on the circle with equation

<em>x</em> ² + <em>y</em> ² + <em>Dx</em> + <em>Ey</em> + <em>F</em> = 0

and you have to use these known points on set up 3 equations involving <em>D</em>, <em>E</em>, and <em>F</em>.

For the point (3, -1), this means when <em>x</em> = 3, <em>y</em> = -1, so

3² + (-1)² + 3<em>D</em> - <em>E</em> + <em>F</em> = 0

→   3<em>D</em> + (-1)<em>E</em> + 1<em>F</em> = -10

The next point (-2, 4) gives

(-2)² + 4² - 2<em>D</em> + 4<em>E</em> + <em>F</em> = 0

→   (-2)<em>D</em> + 4<em>E</em> + 1<em>F</em> = -20

And from the last point (6, 8),

6² + 8² + 6<em>D</em> + 8<em>E</em> + <em>F</em> = 0

→   6<em>D</em> + 8<em>E</em> + 1<em>F</em> = -100

You might be interested in
PLS HELP WILL MARK BRAINLIEST
pychu [463]

Answer:

other person is correct

 

Step-by-step explanation:

3 0
3 years ago
What is three squared minus two thirds?
Tems11 [23]

three squared minus two thirds

3^2-\frac{2}{3}

three square = 3 x 3 = 9

\begin{gathered} 3^2-\frac{2}{3}=9-\frac{2}{3} \\ 3^2-\frac{2}{3}=\frac{9}{1}-\frac{2}{3} \end{gathered}

Least common factor of 1 and 3 is 3

\begin{gathered} 3^2-\frac{2}{3}=\frac{9}{1}-\frac{2}{3} \\ 3^2-\frac{2}{3}=\frac{27-2}{3} \\ 3^2-\frac{2}{3}=\frac{25}{3} \end{gathered}

Three squared minus two third is twenty five by three.

5 0
1 year ago
Hshehebeirjiejeueb why
Aleksandr [31]

Answer:

chinese?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Santo paid $16.25 to buy 5 children tickets and 1 adult ticket. Hulda paid $24.00 to buy 4 children tickets and 3 adult tickets.
jenyasd209 [6]

Answer:

The price of an adult ticket it $5

Step-by-step explanation:

To solve this, we would find the system of equations. We would set up two equations that will represent the situation.

Let c = price per children ticket

Let a = price per adult ticket

Santo:

5c + 1a = 16.25

Hulda:

4c + 3a = 24

5c + 1a = 16.25 -> a = 16.25 - 5c

4c + 3a = 24

4c + 3(16.25 - 5c) = 24

4c + 48.75 - 15c = 24

-11c + 48.75 = 24

       -48.75   -48.75

-11c = -24.75

/-11       /-11

c = 2.25

5c + a = 16.25

5(2.25) + a = 16.25

11.25 + a = 16.25

-11.25        -11.25

a = 5

a = $5 , c = $2.25

5 0
3 years ago
Read 2 more answers
I need help please I don’t get it
Aliun [14]

Answer: left 9 and up 6

Step-by-step explanation:

just if it’s in the bars it’s left if + and on the outside its up if +

3 0
3 years ago
Other questions:
  • Write the expression as an inequality.
    5·2 answers
  • At a bake sale there were 72 raisin cookies sold. if the ratio of raisin cookies sold to oatmeal cookies sold was 9:1, what is t
    11·1 answer
  • The morning announcements said that two out of every seven sixth-grade students in the school have an overdue library book. Jasm
    6·1 answer
  • PLS_HELP
    5·1 answer
  • What is the value of 2(x+y)² when X=3 and Y=4 ?
    14·2 answers
  • Please help! What is the division problem represented by this model?
    12·1 answer
  • What is the midpoint of the line segment with endpoints (3.2, 2.5) and
    8·1 answer
  • A. 16<br> B. 14<br> C. 18<br> D. 24
    5·1 answer
  • Adam adds 6 cards to his collection. His dog eats half the next day. There are 44 cards left. How many cards did Adam start with
    14·2 answers
  • Answer at least two 4 brainliest please &lt;3
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!