Answer:
Step-by-step explanation:
The "template" equation of a circle is:

All you're doing after that, is filling in the blanks:
h = 0
k = 5
r = 5
Answer: The length of the candle was 13.5 inches before it was lit.
Step-by-step explanation:
Let the length of candle in the beginning be c.
Constant rate of change in length of candle= -1.6 inches per hour
Since rate of change is constant so the length of candle can be represented by a linear function [Linear function has constant rate of change.]
Linear function : f(x)= mx+c , where x= independent variable.
m= constant rate of change and c= initial value of function.
Let x = Number of hours after the candle was lit.
Put m= -1.6 , x= 3 and f(x)= 8.7 , we get

Hence, the length of the candle was 13.5 inches before it was lit.
Answer: My friend is correct.
Step-by-step explanation:
<em>Adding a negative is the same as subtracting a positive.</em>



Hope this helps! Have a great day!
Answer:
ill help
Step-by-step explanation: