Goran cut away 79 centimeters of rope. Before that, he had 501.58 centimeters of rope. How much rope does Goran have left?

where are the vectors ?

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.

no. dot product   =0 when vecs at right angles