What are the center and radius of a circle defined by the equation x^2+y^2- 6x+ 8y+ 21=0?
2 answers:
You might be interested in
Answer: -9 degrees Fahrenheit
Step-by-step explanation:
Given: Temperature at 6:00 AM = -12 degrees Fahrenheit
Temperature increased each hour = degrees Fahrenheit
Temperature increase in 6 hours =
Temperature at noon = Temperature at 6:00 AM+Temperature increase in 6 hours
= -12+3 degrees Fahrenheit
= -9 degrees Fahrenheit
Hence, the temperature in degrees Fahrenheit at noon= -9 degrees Fahrenheit