The number of daylight hours in a northern city varies from approximately 4.4 hours on December 21 to 19.9 hours on June 11. The sine function below can be used
to approximate the number of daylight hours, y, in the city for day x.
y = 7.9091 sin (0.0164x - 1.2948) + 12.1825
a) Approximate the number of daylight hours in the city for April 5 (x = 95), for August 18 (x = 230), and for November 29 (x = 333).
b) Determine on which days of the year there will be about 12 hours of daylight.
hours. The number of daylight hours on August 18 is
hours. The number of daylight hours on November 29 is
a) The number of daylight hours on April 5 is (blank)
hours. The number of daylight hours on august 18 is (blank) hours. A number of daylight hours on November 29 is (blank) hours.
Dette