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
SCORPION-xisa [38]
2 years ago
9

Find the equation of a circle whose center is at (-3, 7) and radius is 9 units.

Mathematics
2 answers:
Wittaler [7]2 years ago
5 0

Answer:

x^2+y^2+6x-14y-23=0

Step-by-step explanation:

(x-(-3))^2+(y-7)^2=9^2\\x^2+6x+9+y^2-14y+49=81\\x^2+y^2+6x-14y-23=0

timurjin [86]2 years ago
3 0

Answer:

(x + 3)² + (y - 7)² = 81

Step-by-step explanation:

the equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r the radius

here (h, k ) = (- 3, 7 ) and r = 9 , then

(x - (- 3) )² + (y - 7)² = 9² , that is

(x + 3)² + (y - 7)² = 81

You might be interested in
I NEED HELP PLEASE :(
Studentka2010 [4]

Answer:

7/8

Step-by-step explanation:

power of 1/2 is the same as square root.

√(49/64) = 7/8 since 7/8 * 7/8 = 7*7/8*8 = 49/64

5 0
3 years ago
Use the given circumference to approximate the surface area of the spherical object. Round the answer to the nearest square cent
Kruka [31]
Well since I do not know the unit of measure, I can not give you the answer in a unit of measure but it would be the same answer just add the unit for example meter at the end of the answer and square it. 
The answer is:
232.048
8 0
3 years ago
1.Write an equation in slope- intercept form of the line that passes through the given point and is parallel to the graph of the
Kryger [21]
<span>1.Write an equation in slope- intercept form of the line that passes through the given point and is parallel to the graph of the given equation. (2,-2);y=-x-2

D.y=-x

2.Write an equation in slope- intercept form of the line that passes through the given point and is parallel to the graph of the given equation. (2,-1);y=-3/2x-6

C.y=-3/2x+2  

3.Write an equation in slope- intercept form of the line that passes through the given point and is parallel to the graph of the given equation. (4,2);x=-3
 D.y=4

4.Write an equation in slope- intercept form of the line that passes through the given point and is perpendicular to the graph of the given equation. (-2,3);y=1/2x-1

B.y=-2x-1 

5.Write an equation in slope- intercept form of the line that passes through the given point and is perpendicular to the graph of the given equation. (5,0);y+1=2(x-3)

 D.y=-1/2x+5/2</span>
5 0
2 years ago
Read 2 more answers
A line contains the points (30, 1) and (39, 4). Find the slope of the line?
satela [25.4K]

Answer:

Rise/Run

4-1/39-30

3/9

<u>1/3 Is the slope</u>

3 0
2 years ago
Read 2 more answers
In 6 years, John will be 3 times the age he was 2 years ago. What is his current age?
Vladimir79 [104]

Answer:

John is currently 6 years old.

Step-by-step explanation:

2 years ago: x years

Current time: x+2

In 6 years: x+8

EQUATION:

3(x)=x+8= 3x=x+8

(subract x from both sides)

2x=8

x=4

Therefore, John is 6 years old in current time

7 0
3 years ago
Other questions:
  • The shortest distance from any point to a line is a
    6·1 answer
  • HURRY LOTS OF POINTS
    7·2 answers
  • WHOEVER GIVES RIGHT ANSWER GET 99 POINTS
    14·2 answers
  • a type of bacteria in a petri dish doubles every hour. If there were 1073741824 bacteria after 24 hours, how many where there to
    5·1 answer
  • In the figure below, if the angle is right what is the value of x?<br>​
    12·2 answers
  • The graph of y=tan{1/4(x-pi/2)}+2 is shown. What is the period of the function?
    15·1 answer
  • In the figure below, what is the measure of AB?
    7·1 answer
  • Please help me with this ASAP ASAP please please help please please
    14·1 answer
  • Solve for x and y if: <br> {6x - 11y=-58 8x+y=1
    10·1 answer
  • elton is a candle maker , each 15 cm long candle makes burns evenly for 6 hours if elton makes a 45 cm long candle how long woul
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!