ALGEBRA HELP PLEASE!!!
1 answer:
You might be interested in
Answer:
see explanation
Step-by-step explanation:
the equation of a circle centred at the origin is
x² + y² = r² ( r is the radius )
(11)
- 81 + x² = - y² ( add y² to both sides )
- 81 + x² + y² = 0 ( add 81 to both sides )
x² + y² = 81 ← in standard form
with centre = (0, 0 ) and r = = 9
(12)
y² + x² - 196 = 0 ( add 196 to both sides )
x² + y² = 196 ← in standard form
with centre = (0, 0 ) and r = = 14
Answer:
The crossover point for Time
Step-by-step explanation:
From the question we are told that
The total rooms rented for the year is
Time's fixed cost is r = $61,000
Time's variable cost is $12.5 per room
Duffy's Maid Service fixed cost is $25,000
Duffy's Maid Service variable cost is $18.00 per room
The cross over point for Time is mathematically represented as
substituting values