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Mathematics 48 Online
OpenStudy (anonymous):

Complete the following item. Consult the table above to find the cosine number. Find A to the nearest degree. A = ? degrees.

OpenStudy (amistre64):

seems like your matching numbers to angles according to what i can read from this

OpenStudy (anonymous):

OpenStudy (amistre64):

good, now how do we define cosine?

OpenStudy (anonymous):

the ratio of the side adjacent to the angle over the hypotenuse.

OpenStudy (amistre64):

good, which value would you say is the side and which is the hypot in this pic?

OpenStudy (anonymous):

267 is the side and 391 is the hypot

OpenStudy (amistre64):

good, and when we divide 267 by 391 we get a value of about .6828 that we need to find on a table of cosines

OpenStudy (amistre64):

do you have the table that was spoken of in the post?

OpenStudy (anonymous):

no but hold on

OpenStudy (anonymous):

here it is

OpenStudy (amistre64):

look at the columns that are labeled as "cosine" and find the values that our 6828 fits inbetween

OpenStudy (anonymous):

51

OpenStudy (amistre64):

hmmm, i would say it fits better between 46 and 47. wouldnt you?

OpenStudy (amistre64):

6947 6828 6820 46 our# 47

OpenStudy (anonymous):

oh yea ur right, don't know what i was thinkin

OpenStudy (amistre64):

our# is closer to 47 than 46, so id approx it to 47

OpenStudy (anonymous):

ok

OpenStudy (amistre64):

post up another one and see who bites, i have to go home soon

OpenStudy (amistre64):

good luck ;)

OpenStudy (anonymous):

thankyou so much for ur help

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