Katie is watching a helicopter flying at an altitude of 5 miles. if the angle of elevation is , the distance between katie and the helicopter is approximately miles.

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels