thewhitestripesfan thewhitestripesfan

25-07-2018
Mathematics

contestada

given a circle with a center (0,-5) and a radius of 2, what is the equation of the circle?

a. x^2 + (y-5)^2 =4

b. (x-5)^2 + y^2 =4

c. X^2 + (y +5)^2 = 4

Respuesta :

29-07-2018

The equation of a circle:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

(h, k) - a coordinates of the center

r - a radius

We have:

[tex](0,-5)\to h=0;\ k=-5\\r=2[/tex]

substitute

[tex](x-0)^2+(y-(-5))^2=2^2\\\\x^2+(y+5)^2=4[/tex]

Answer: c. x^2 + (y +5)^2 = 4

Answer Link

Otras preguntas

Solve the following equations, using any method you like. Show your work and verify yoursolution. -2x - 5 = 10x + 7 - 6x6x + 2(5 - x) = 2x+2

Which is a solution for the following system of inequalities? x+y >2 2x-y>1

Rearranging and Solving Linear Equations and Inequalities. (Solve the inequality below for x, where r > 0). A) x > 34/r B) x > 34r C) x > 4/r D)

Brainers, please help me, please.

find the future value of this loan. $8079 at 9.1% for 7 months (round to the nearest cent if needed)

Solve the system. −x+4y=6 −x+3y=5

how did the haitian revolution impact the louisiana purchase

Find the sum of a finite geometric sequence from n = 1 to n = 7, using the expression −4(6)n − 1. 111,325 526 782 -223,948

six less than a number is more than 15. write the inequality solve it and graph your solution

Calorimetry can be used to find heats of combustion. suppose a calorimeter helps someone to determine that 4032 kj of heat is released during the combustion of