a tree casts a shadow that is 150 feet long. if the angle of elevation from the tip of the shadow to the top of the tree is 30 degrees how tall is the tree to the nearest foot

What are the differences between differing map projections ?

How does a command economy differ from a mixed market economy? in a command economy, citizens have fewer property rights. in a mixed market economy, citizens have more property in a command economy, citizens have more property rights. in a mixed market economy, citizens have fewer property rights in a command economy citizens own all public property. in a mixed market economy, the government owns all private, property in a command economy, citizens own all private property in a mixed market economy, the goverment owns all public property

Why the moon is not visible from earth during the new moon ?