An airplane over the pacific ocean sights an atoll at an 7° angle of depression. if the plane is 663 m above the water, how many kilometers is it from a point 663 m directly above the atoll

There are several unique characteristics of qualitative research that make it distinct from quantitative research. describe the aspects of qualitative research and the elements of design that contribute to the rigor of the work. what actions of the researcher can compromise the integrity of the findings?

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

I'm confused on this could anyone me and show me what i need to do to solve it.