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
zysi [14]
3 years ago
8

Which conic section does the equation below describe? x^2+y^2+2x-8y-13=0

Mathematics
1 answer:
Gre4nikov [31]3 years ago
3 0

Answer:  B) Circle

<u>Step-by-step explanation:</u>

First, complete the square:

x² + 2x + <u>  1   </u>  + y² - 8y + <u>  16  </u> = 13 + <u>  1  </u> + <u>  16  </u>

       ↓       ↑             ↓         ↑

   (2/2) = (1)²          (-8/2) = (-4)²

       (x + 1)²    +             (y - 4)²   =  30

The result is a circle whose center is (-1, 4) and radius is √30

You might be interested in
3. The radius of a circle is 14 yds. What is the area? Use 3.14 as pi.​
Flura [38]

Answer: I'm just answering so if only one person answers then u can give the other person brainliest.

Step-by-step explanation:    Also if nobody is answering u might want to repost this question

7 0
2 years ago
Read 2 more answers
He buys a jewel for $180, then sells it for $216. Find his percentage profit.
yan [13]

Answer:20%

Step-by-step explanation:216-180=36. 36/180=.20

6 0
2 years ago
What is the solution, if any, to the inequality |3x|≥0?
Murljashka [212]

The inequality is all real numbers.

<h3>What is inequality?</h3>

A statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.

Given:

|3x|≥0

3x = 0

Divide both sides of the equation by the coefficient of variable

x= 0/3

x=0 = RHS

Learn more about inequality here:

brainly.com/question/20383699

#SPJ1

4 0
1 year ago
Write 9-³ in standard form
ValentinkaMS [17]
729 wish you well on your assignment ~JyMarkus
5 0
2 years ago
Solve the equation. 3 (x - 1) = 18
In-s [12.5K]
  • 3 ( x - 1 ) = 18
  • or, 3x - 3 = 18
  • or, 3x = 18 - 3
  • or, 3x = 15
  • or, x = 15 ÷ 3
  • or, x = 5

<u>Answer</u><u>:</u>

<u>x </u><u>=</u><u> </u><u>5</u>

Hope you could understand.

If you have any query, feel free to ask.

4 0
2 years ago
Read 2 more answers
Other questions:
  • BRAINLIEST........................
    7·1 answer
  • Plz help me with this math problem
    10·1 answer
  • Joanna has a board that is 6 feet long. She cuts it in to pieces that are each 1/4 foot long. Which equation represents the numb
    6·1 answer
  • Please help!
    9·1 answer
  • Answer to the question
    7·1 answer
  • (To be answered in the next 20 minutes)
    7·1 answer
  • HURRY PLEASE I NEED THIS SOON
    15·2 answers
  • Need help pls geometry question
    5·1 answer
  • Which expression is equivalent to<br> 2x +(-7) - 2x - (-2)?
    10·2 answers
  • Over 7 months, the weight of a baby measured in pounds doubled. Does its weight measured in kilograms also doubled
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!