Question

Radius of the circle concentric with x2 + y2 + 6x – 10y – 2 = 0 and touching x – axis is _______

a.5
b.6
c.– 10
d.2
I also need explanation.

Answer 1

Answer:

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Answer 2

Answer:

This will give us a circle of centre (-3, 10) and radius = sqrt(76)

The circule concentric with above circle and touching axe x= 0. , means it will hace same cenyre point but radius will be = 10

Equation if the concentric circle touching x=0 is

$(x+3)^{2}$+$(y - 10)^{2}$=100

It will have a radius =10

___________

Jahnavi ❤

Step-by-step explanation: