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krissywatts

  • 3 years ago

If the cosine of an angle is 0.93475, what is the angle expressed as degrees, minutes and seconds?

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  1. baldymcgee6
    • 3 years ago
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    cos(x) = 0.93475 Take the cos^-1 of each side to solve for x

  2. baldymcgee6
    • 3 years ago
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    because the cos^-1(cos(x)) = x

  3. mark_o.
    • 3 years ago
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    check that your answer will be 20deg 48min 43.94 sec

  4. krissywatts
    • 3 years ago
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    20 degrees 48 minutes 43.9 se

  5. krissywatts
    • 3 years ago
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    seconds

  6. baldymcgee6
    • 3 years ago
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    @mark_o. how is degrees and time related?

  7. JakeV8
    • 3 years ago
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    it's not time, it's just the same sort of terminology. a degree can be divided into 60 parts called "minutes", and each minute can be divided into 60 seconds.

  8. krissywatts
    • 3 years ago
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    have two more i need checked

  9. JakeV8
    • 3 years ago
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    So it's very much like time, but it is just a way of dividing up degrees.

  10. mark_o.
    • 3 years ago
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    its not really time here,,its the revolution , like i revolution = 360 degrees, and measurements with minutes and seconds are subdivisions of degrees having nothing to do with time. The names are due to the fact that 1/60th was chosen as the standard, so there are sixty minutes in a degree and sixty seconds in a minute, just like on a clock.

  11. krissywatts
    • 3 years ago
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    what is the cosine of 104.73167 degrees? i got -0.25429 is this correct

  12. mark_o.
    • 3 years ago
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    yes correct @ krissywatts

  13. krissywatts
    • 3 years ago
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    what is the tangent of 75 degrees 16 minutes abd 31 seconds? i got 3.80508

  14. krissywatts
    • 3 years ago
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    thanks

  15. mark_o.
    • 3 years ago
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    yw good luck now

  16. krissywatts
    • 3 years ago
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    thanks

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