Respuesta :

fieryanswererft

Answer:

[tex]\sf cos(D) = \dfrac{3}{5}[/tex]

using the cosine formula:

[tex]\sf cos(x) = \dfrac{adjacent}{hypotenuse}[/tex]

solve:

[tex]\hookrightarrow \sf cos(D) = \dfrac{15}{25}[/tex]

simplified:

[tex]\hookrightarrow \sf cos(D) = \dfrac{3}{5}[/tex]

semsee45

Answer:

a.  3/5

Step-by-step explanation:

Trig ratio:

[tex]\mathsf{cos(\theta)=\dfrac{adjacent \ side}{hypotenuse}}[/tex]

Given:

  • angle = D
  • side adjacent to angle = 15
  • hypotenuse = 25

[tex]\mathsf{\implies cos(D)=\dfrac{15}{25}=\dfrac35}[/tex]

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