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

What is the initial temperature of a gas if the volume changed from 1.00l to 1.10l and the final temperature was determined to be 255?
Plot and conflict operate within the setting. True False
Can obesity be contagious?
A heart attack is the death of a heart muscle true or false chaptrr 11
What are three connection methods for the globalprotect agent? (choose three.)?
Read line 12 from "Sonnet 73" and answer the question. -- Consumed with that which it was nourish'd by. -- What does consumed mean as used in this line? 1.ov
In one process, 6.05 kg of caf2 is treated with an excess of h2so4 and yields 2.85 kg of hf. calculate the percent yield of hf.
Help !! I don’t understand the problem
What is the body of water that was constructed the great lakes to atlantic ocean?
The absolute value function is written f(x) = |x|. It is composed of the lines y = x and y = -x. Its domain is the real numbers and its range is the set of real