Answer:
Step-by-step explanation:
Given
-- center
--- pass through
Required
The radius (r)
The equation of circle is:
So, we have:
Take square roots of both sides
Insert x = 7
so 3/(7+2) - sqr (7-3)
=3 / (9) - sqr (4)
= 1/3 - 2
=1/3 - 6/3
= -5/3
Answer:
■ Sales tax: $5.67
■ Cost/Price before ST: $125.89
■ Total Cost/Price including ST: $131.56