Respuesta :

Answer:

a

Step-by-step explanation:

i think it is a but i think you can do this on a calculator

sqdancefan

Answer:

  A.  3/5

Step-by-step explanation:

You are reminded of the relevant trig relation by the mnemonic SOH CAH TOA. It tells you ...

  Cos = Adjacent/Hypotenuse

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In the given triangle, the side adjacent to angle C is CB = 6. The hypotenuse is CA = 10. Then the cosine ratio is ...

  cos(C) = CB/CA = 6/10

  cos(C) = 3/5 . . . . . . reduce the fraction