50 ! in the first step of a proof, the left-hand side of the following identity is factored. sin^2∅-cos^2∅sin^2∅=sin^4∅

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

The winner of a golf tournament made five putts for birdies. the lengths of these putts are in the table shown. what is the total distance of the putts in the yards, feet, and inches?

What is the benefit of converting measures in a ratio to the same unit