morain22 morain22

13-06-2021
Mathematics

contestada

What are the center and radius of the circle defined by the equation x^2 + y^2 -6x + 8y + 21=0

Respuesta :

surjithayer10otahza surjithayer10otahza

13-06-2021

Answer:

Step-by-step explanation:

(x²-6x)+(y²+8y)=-21

(x²-6x+9)+(y²+8y+16)=-21+9+16

(x-3)²+(y+4)²=4

center=(3,-4),radius=√4=2

Answer Link

Otras preguntas

Dentists agree that this toothpaste will give you a brighter smile and fresher breath. Which type of rhetoric is being used to persuade the audience? A. Logos

Brooklyn has a combination of dimes and nickels in her wallet. she has three time as many nickels as she does dimes,and the total value of the coins is $4.00.ho

How to find two different variables in one equation using substitution?

It cut off the states of arkansas, louisiana, and texas from the rest of the confederacy. it gave the union navy complete control of the mississippi river. it,

PLEASE HELP EXPLAIN THIS!?! (picture below) I have part A however idk how to work out part B how would i write the equation out???

Determine the molecular formula for glucose, with a molar mass of 180 grams, if the empirical formula for glucose is CH2O. CH2O C2H4O2 C3H6O3 C6H12O6

Why did you meant decide to use atomic bomb A. He wanted to keep the Germans from entering the war in the pacific B. He wanted to test the effects of an atomic

What is the range of ƒ(x) = |x|? (–∞, ∞) [0, ∞) (–∞, 0) (0, ∞)

How do food vacuoles and lysosomes help with nutrition?

a car was purchased for $24000 is now worth $15000. to the nearest tenth of a percent, what was the percent decrease in the value of the car?