Which equation is correct? sin h° = y ÷ x sin h° = x ÷ y tan h° = y ÷ x tan h° = x ÷ y

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola

What ia the sum if the first 7 terms of the geometric series

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters