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Thread: Trig Help ( verify answers)

  1. #1
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    Trig Help ( verify answers)

    Convert the angle given in degrees to radian measure in terms of .380°

    i got 6.63 rad

    to 4 sig.figs
    1.018


    Solve the equation for all nonnegative values of less than . Do by calculator, if needed, and give the answers to three significant digits in the order of increasing.
    (not sure what to do)


    A satellite is in a circular orbit 225 km above the equator of the earth. How many kilometres must it travel for its longitude to change by 86.3°?
    Assume the radius of the earth equals 6400 kilometres.(round to the nearest whole number)
    i got 9639.80 =9600
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  2. #2
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    Quote Originally Posted by rock candy View Post
    Convert the angle given in degrees to radian measure in terms of .380°

    i got 6.63 rad
    Unfortunately, I cannot see any of your attachments.
    "6.63 rad" is the NUMERICAL value but the problem asked you give it in terms of \pi: Since there are 360 degrees or 2\pi radians so the conversion factor is \frac{2\pi}{360}= \frac{\pi}{180} radians per degree. \frac{\pi}{180}(380)= \frac{380}{180}\pi. Just do the fraction part.

    Unfortunately, I cannot see the attachments.

    to 4 sig.figs
    1.018


    Solve the equation for all nonnegative values of less than . Do by calculator, if needed, and give the answers to three significant digits in the order of increasing.
    (not sure what to do)


    A satellite is in a circular orbit 225 km above the equator of the earth. How many kilometres must it travel for its longitude to change by 86.3°?
    Assume the radius of the earth equals 6400 kilometres.(round to the nearest whole number)
    i got 9639.80 =9600
    Follow Math Help Forum on Facebook and Google+

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