The tallest student in the Freshman class is 2.1 m high. When Mr. Langston stands far away from the student, his line of sight to the top of the student's head forms an angle of elevation of 18 degrees with the ground. What is the horizontal distance between the tall student and Mr. Langston? Round to the nearest meter.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap

The data represents the semester exam scores of 8 students in a math course. {51,91,46,30,36,50,73,80} what is the five-number summary?

According to the 2008 u. s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.