fyafai403 fyafai403
  • 22-06-2021
  • Mathematics
contestada

1. What is the center and radius of the given circle (x – 3)² + (y + 8)² = 39?

Respuesta :

ivycoveredwalls
ivycoveredwalls ivycoveredwalls
  • 22-06-2021

Answer:

Center (3, -8), radius = [tex]\sqrt{39}[/tex]

Step-by-step explanation:

The Standard Form for the equation of a circle is

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

The center is the point (h, k) and the radius is r.

Match up the given equation with the standard form.

[tex](x-h)^2=(x-3)^2 \rightarrow h=3\\(y-k)^2=(y+8)^2 \rightarrow k=-8[/tex]

That last bit can be tricky, k = -8, not 8.  Watch the signs!

Answer Link

Otras preguntas

6010 males did a survey and 59.7% choose vanilla how many choose chocolate
6010 males did a survey and 59.7% choose vanilla how many choose chocolate
What Is the Connection Between the Digestive System and Urinary System?
How much force is needed to move a box to an acceleration of 1.5 m/s^2 and a mass of 50 kg?
i have to analyze a paragraph then circle the verbs an underline the adjectives but um lost
What are Gender Neutral Pronouns?
What is an Honorific?
Adam drew two same size rectangles and divided them into the same number of eqal parts. He shaded 1/3 of one rectangle and 1/4 of the other rectangle. What is t
how does climate affect the type of biome found in an area?
Damari inflates a spherical balloon to twice its original radius. Explain to Damari why the surface area is 4 Tims as big when the radius is doubled.