The angle of elevation to an airplane viewed from the control tower at an airport is 7º. The tower is
200 feet high and the pilot reports that the altitude is
5200 feet. How far away from the control tower is
the airplane? Round your answer to the nearest foot.

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit