emilyrenee0731 emilyrenee0731

10-05-2020
Mathematics

contestada

What is the equation of a circle centered at the origin with radius 15?
O A. x+y=15
O B. x + y) - 225
O c. x + y = 15
O D. x2 + y2 = 225

Respuesta :

jimrgrant1 jimrgrant1

10-05-2020

Answer:

D

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( where r is the radius )

Here r = 15, thus

x² + y² = 15² , that is

x² + y² = 225 → D

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