The third quarter phase of the Moon as seen on Earth is shown in the given picture. Approximately what percent of the visible illuminated Moon's surface is seen in this phase?

b.

explanation:

10.0

no

sodium is solid at rt

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west