C is the answer c is the answer
X^2 + y^2 - 2x + 7y + 1 = 0
(x^2 - 2x) + (y^2 + 7y) + 1 = 0
(x^2 - 2x + 1) + (y^2 + 7y) + 1 = 0+1
(x^2 - 2x + 1) + (y^2 + 7y + 49/4) + 1 = 0+1+49/4
(x - 1)^2 + (y + 7/2)^2 + 1 = 0+1+49/4
(x - 1)^2 + (y + 7/2)^2 + 1-1 = 0+1+49/4-1
(x - 1)^2 + (y + 7/2)^2 = 49/4
(x - 1)^2 + (y + 7/2)^2 = (7/2)^2
The final answer is choice B
Answer:
Step-by-step explanation:
If the retail price in 1992 is $20,000
It increases at 5% per year
The Price After 1 year = 20000+ (5% of 20000) = 105% of 20000=20000*1.05
The Price After 2 years =
Continuing in like manner, after t years
The retail price
Answer: 1. X = 24
2. X = 20
Step-by-step explanation:
3
x
−2=6
Multiply both sides of the equation by 3.
x−6=18
Add 6 to both sides.
x=18+6
Add 18 and 6 to get 24.
x=24
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5
x
+1=5
Multiply both sides of the equation by 5.
x+5=25
Subtract 5 from both sides.
x=25−5
Subtract 5 from 25 to get 20.
x=20