person123466 person123466

16-01-2021
Mathematics

contestada

PLEASE HELP DUE SOON FIRST GOOD ANSWER GETS BRAINLIEST

show that x^2 + y^2 + z^2 = 3(2x-y) -1 is a sphere

Respuesta :

ChoiSungHyun ChoiSungHyun

16-01-2021

Step-by-step explanation:

x² + y² + z² = 3(2x - y) - 1

x² + y² + z² = 6x - 3y - 1

x² - 6x + y² + 3y + z² = -1

(x - 3)² + (y + 1.5)² + z² = -12.25

(x - 3)² + (y + 1.5)² + z² = -(3.5)²

Since it follows the general equation form, it is a sphere.

Answer Link

Otras preguntas

strauss, whom oppenheimer had humiliated at a congressional hearing about whether or not to ban the sale of radioisotopes______________

After failing to locate an owner or rightful heirs, the state may acquire ownership of abandoned property through __________.

We do not talk of a 100% confidence interval because, a) it will not be useful b) we can confuse people while appearing smart c) we can make a lot of money by c

Where do the two heads of the biceps brachii originate? a. scapulab. humerusc. clavicled. coracoid processe. supra glenoid tubercle

Which chemical equation is correctly balanced? Responses Mg(NO3)2 K2CO3→MgCO3 KNO3 Mg(N O 3 ) 2 K 2 C O 3 → MgC O 3 KN O 3 Mg(NO3)2 K2CO3→MgCO3 2KNO3 Mg(N O 3 )

How many systems work together to maintain a person's sense of balance?

Does exercise reduce the intensity of Bobby's chronic shoulder pain? What is the probable reason for this reduction? Is it due to the release of naturally produ

What is swapping data between RAM and a hard drive?

Investments in R&D a) are usually a waste of time and money. b) can allow the firm to maintain and strengthen its competitive position. c) can allow the fir

Question POSSIBLE POINTS: 1 Kandi has a bag of marbles. She has 5 black, 3 white, 2 green, and 4 orange marbles. Kandi reaches into the bag without looking and