Inverse Trigonometric Functions Answers

The water level at a pier is modeled by the function , where y represents the water level measured in meters, and x represents the number of hours since the last high tide. After how many hours is the water first expected to reach a depth of 12 meters? Round to the nearest tenth of an hour.

Which statement is true about y = arctanx?

For what value of θ is ?

What is the domain of y = cos-1x?

Review the graph.

What is the value of ?

Review the graph.

The average daily high temperature in Madrid peaks at 92°F in the summer and drops as low as 33°F in the winter. The temperature can be modeled by , where d represents the day number of the year (January 1 is 1, January 2 is 2, and so on). During which day is the high temperature expected to be closest to 75°F?

Which expression is undefined?

What is the value of sin-1(1)?