During a certain period of time, about 70 northern sea otters had an annual growth of 18%. Use an exponential function to find the approximate number of sea otters after 4 years.

Theirhgghh

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.