Asubmarine is 600 feet below sea level. it is rising to the surface at a rate of 15 feet per hour. which expression represents this scenario?

I think it would be 60 to the power 2

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.