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
geniusboy [140]
3 years ago
13

Identify the center and radius of each circle x^2 + y^2 + 4x + 12 - 8 = 0

Mathematics
1 answer:
Elanso [62]3 years ago
8 0

Answer:

we have the centre as:

(−2,0)

radius √12=2√3

Explanation:

The standard equation of a circle is

(x−a)2+(y−b)2=r2

where (a,b)

is the centre, and

r is the radius,

we thus have to complete the square on the given equation.

x2+y2+4x−8=0

rearrange slightly

x2+4+y2−8=0(x2+4+2)+y2−8−22=0(x+2)2+y2−12=0(x+2)2+y2=12

comparing with

(x−a)2+(y−b)2=r2

we have the centre as:

(−2,0)

radius

√12=2√3

You might be interested in
What decimal is equivalent to StartFraction 8 over 100 EndFraction
makkiz [27]

Answer:

8/100 is equivalent to 0.08

5 0
3 years ago
Read 2 more answers
He sum of three consecutive integers is −369−369. find the three integers.
Alinara [238K]
N + (n+1) + (n+2) = -369
3n + 3 = -369
3n = -366
n = -122

so the three consecutive integers are : -124 ; -123 ; -122
4 0
3 years ago
Foot pieces you can cut from 5 feet of
Rzqust [24]

Answer:

1p = r

Step-by-step explanation:

You are asking how many 1-foot pieces you can make out of a 5 foot piece of ribbon. You are asking for an equation.

p = the # of pieces

r = the amount of ribbon

So lets try the equation:

1p   = r

1(4) = r

1*4 = 4

4    = r

<h2><u>PLEASE MARK BRAINLIEST!  </u></h2>
7 0
3 years ago
10. if ABC is equilaterteral, solve for x​
djyliett [7]

Answer:

13

Step-by-step explanation:

If ABC is equilaterteral then all the angles must be equal and 60°

8x - 44 = 60 add 44 to both sides

8x = 104 divide both sides by 8

x = 13

8 0
3 years ago
P - 4 = -9 + p. Please help.
OverLord2011 [107]
Easy, take:

p-4=-9+p

Isolate the variable, this is what you are trying to find (p)

p-4=-9+p
-p        -p

-4=-9.

There is no variable, which means, there is NO SOLUTION!

You can put no solution, or ∅, as an answer.
4 0
3 years ago
Other questions:
  • Which of the following is an advantage of an observational study over a sample survey? A)Observational studies are not dependent
    12·1 answer
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!
    10·1 answer
  • The hypotenuse of a 45°-45°-90° triangle measures 7 StartRoot 2 EndRoot units.
    7·2 answers
  • A candy store sells mints in 1/4, 1/2 , and 3/4 lb packages. John purchases several packages of each weight.
    11·1 answer
  • The florist makes the greatest number of identical arrangements with the carnations and asters. She has 72 carnations and 42 ast
    6·1 answer
  • Roger says that the equation x²-12x+36=0 has only one solution, Regina says Roger is wrong and that the fundamental theorem of a
    7·1 answer
  • Does the point (3,25) lie on the line y = 6x + 7?
    10·2 answers
  • Easy question solve and get 10 points 3245=3×100__×2×__×__4×__+5
    15·1 answer
  • Anyone help me please?
    13·2 answers
  • Where is the function f(x)=3x^2-6x-45/x^2-5x discontinuous, and what types of discontinuities does it have?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!