In mathematical induction, showing that something works for the first case, or that P1 is true. angle of depression. The angle formed by a horizontal line and an observer's line of sight to an object below. angle of elevation. The angle formed by a horizontal line and an observer's line of sight to an object above.
Plankton's voice is provided by American actor Mr. Lawrence. The voice Lawrence uses for Plankton originated as an imitation of one of his deep-voiced friends from high school. On television, he first used the voice for incidental characters on Rocko's Modern Life.
1 Jem / Jerrica Benton (voiced by Samantha Newark, singing voice recorded by Britta Phillips) â Jem is the leader of the Holograms where she provides the lead vocals.2  She is the alter-ego of Jerrica Benton, owner of Starlight Music and a foster home for girls known as Starlight House (later called Starlight Mansion). Phyllis Pizzazz Gabor (voiced by Patricia Alice Albrecht, singing voice recorded by Ellen Bernfeld) â Pizzazz is an archetypal spoiled rich girl who is the lead vocals and guitarist of the Misfits.