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
horrorfan [7]
2 years ago
10

1. A circle with center (-5, 2) is tangent to the y-axis. What is the radius of the circle? What is the equation of the circle?

Mathematics
1 answer:
Bess [88]2 years ago
4 0

Answer:

Step-by-step explanation:

1)  The center lies on the vertical line x = -5 and the the circle is tangent to (touches in one place only) the y-axis.  Thus, the radius is 5.

2)  Starting with (x - h)^2 + (y - k)^2 = r^2 and comparing this to the given

                     (x - 4)^2 + (y + 3)^2 = 6^2

we see that h = 4, k = -3 and r = 6.  The center is at (4, -3) and the radius is 6.

3)  Notice that A and B have the same x-coordinate, x = 15.  The center of the circle is thus (15, -2), where that -2 is the halfway point between the two given points in the vertical direction.   Arbitrarily choose A(15, 4) as one point on the circle.  Then the equation of this circle is

(x - 4)^2 + (y + 3)^2 = r^2 = 6^2, where the 6 is one half of the vertical distance between A(15, 4) and B(15, -8) (which is 12).

You might be interested in
Please help asap! Will give brainliest! Please answer correctly!<br> No guessing!
Greeley [361]

Answer:

Option B

Step-by-step explanation:

I solved in the picture

Hope this helps ^-^

5 0
3 years ago
Read 2 more answers
SOLVE X SQUARED ADD 5X -14. ALL DIS HOMEWORK IS SOOO ANNOYING EXTRA CREDIT FOR PEOPLE WHO GET ME DE MARKKKSSS!!!!! PLS I DE BEGG
MrRissso [65]

Answer:

X= (7;-2)

Step-by-step explanation:

X2+5X-14

(X-7)(X+2)

X= 7;-2

5 0
3 years ago
Help a girl out ?? needs turned in at 8:50 pm pls help
True [87]
I guess it’s A not sure tho
6 0
3 years ago
Read 2 more answers
1/8 convert to decimal
Hitman42 [59]

Answer:

.125

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
I don’t understand this I need help please
scoray [572]
The answer is B 2+(-35)
8 0
3 years ago
Read 2 more answers
Other questions:
  • When placed in a 100ml cube-shaped box, a substance fills the cube and has a volume of 100 ml. when placed in a 50?
    7·1 answer
  • The point A(–1, 4) is translated five units right and three units down. Which rule describes the translation?
    5·2 answers
  • in a state with a population of 2000000 the average vitizen spends 6000 on housing each year. what is the total spent on housing
    12·1 answer
  • Point B has coordinates ​(3​,2​). The​ x-coordinate of point A is negative 9. The distance between point A and point B is 15 uni
    6·2 answers
  • 7.) When rounding to the nearest 10, what is the largest number that will
    5·1 answer
  • Today 4 friends went out for lunch. Their total bill was $24.80, including tax and gratuity. They decided to split the bill equa
    14·1 answer
  • Solve system of equations <br><br> 3x+6y=3 <br> X+2y=1
    7·1 answer
  • Which ordered pair is the solution to the system of equations?
    8·1 answer
  • What is the density of the oak board, it's 5.5 inches wide, 1.5 inches thick , 3 feet long and weighs 8.05 lbs? Please show work
    9·1 answer
  • The radius of a circle is 3ft. What is the circumference of the circle? Use 3.14 for pie.<br>​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!