For an angle Θ with the point (12, −5) on its terminating side, what is the value of cosine? −5 12 negative 5 ove

Question

For an angle Θ with the point (12, −5) on its terminating side, what is the value of cosine?

−5
12
negative 5 over 13
12 over 13

in progress 0
2022-04-08T03:01:18+00:00 0 Answers 0

Answers ( 2 )

  1. Allison
    0
    2022-04-08T03:03:09+00:00

    Answer:

    D

    Step-by-step explanation:

    I just took the test. 🙂

  2. Clara
    0
    2022-04-08T03:03:17+00:00

    Given that the point (12,-5) which takes the form (x,y), This implies that:
    opposite=-5
    adjacent=12
    thus using using Pythagorean theorem, the hypotenuse will be:
    c^2=a^2+b^2
    plugging the values we obtain:
    c^2=(12)^2+(-5)^2
    c^2=144+15
    c^2=169
    thus
    c=13
    but
    cosu03b8=adjacent/ hypotenuse
    therefore:
    cosu03b8=12/13

    Answer is option . D

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