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Mathematics 19 Online
OpenStudy (anonymous):

Geometry Help Please, Thank you :D

OpenStudy (anonymous):

#5

OpenStudy (anonymous):

And the question is?

OpenStudy (anonymous):

right above u ^

OpenStudy (anonymous):

arccos(31/64)

OpenStudy (anonymous):

huh?

OpenStudy (anonymous):

take the inverse cosine of 31/64... calculator..

OpenStudy (anonymous):

cos x = 31/64, according to the triangle shown in #5.... to find x, you need to take the inverse cosine of 31/64...

OpenStudy (anonymous):

which is ? I treid it and didnt get any of the answer options

OpenStudy (anonymous):

what did you get in your calculator?

OpenStudy (anonymous):

do you know how to punch it into your calculator?

OpenStudy (anonymous):

there's a 2nd key for the cosine key... that should be the cosine inverse key.

OpenStudy (anonymous):

um okay i got 61

OpenStudy (anonymous):

that's it...

OpenStudy (anonymous):

be careful though... most calulators have 3 modes... radian, degree, and grad modes. make sure you're in the mode you want...

OpenStudy (anonymous):

60

OpenStudy (anonymous):

???

OpenStudy (anonymous):

i got 61....

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