> your welcome :) and tell me if it’s right
Answer:
x= 16±√-64 over 2
Step-by-step explanation:
x= -(-16)±√(-16)²-4×1×80 over 2×1
x= 16±√256-320 over 2
x= 16±√-64 over 2
can also be represented with all real numbers.
Answer: $ 0.146 per year.
Step-by-step explanation:
Given: Average price of gas in 2000 = $1.57 per gallon
Average price of gas in 2005 = $2.30 per gallon
The rate of change for each year between 2000 to 2005
= 

Hence, the rate of change for each year between 2000 to 2005 is $ 0.146 per year.