What is 15 divied 1/9

What basic trigonometric identity would you use to verify that csc x sec x cot x = csc^(2)x

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv

What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3