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Mathematics 7 Online
OpenStudy (anonymous):

HELP multiple choice. IDK

OpenStudy (anonymous):

OpenStudy (anonymous):

@xavier123 help?

OpenStudy (anonymous):

do u know sin(theta)=opposite side/hypotenuse... now solve it and let me know...

OpenStudy (anonymous):

im not sure how to solve it? @xavier123 is it cosine?

OpenStudy (anonymous):

could you set it up for me please?

OpenStudy (anonymous):

i gave u the definition for sin(theta)... tht should help u to figure out the answer... have u even tried finding the answer using the equation ??

OpenStudy (anonymous):

no . so I know it sine which is opposite over hypotenuse?

OpenStudy (anonymous):

could you set it up for me?

OpenStudy (anonymous):

opposite side is 3.6... hypotenuse is 3.9... rest should be EASY I GUESS

OpenStudy (anonymous):

so i divide those?

OpenStudy (anonymous):

yup

OpenStudy (anonymous):

i still dont get anything

OpenStudy (anonymous):

@xavier123

OpenStudy (anonymous):

sin(theta)=3.6/3.9=12/13

OpenStudy (anonymous):

alright how to do this?

OpenStudy (anonymous):

a=(hypotenuse)*sin(theta)=26*sin(43 degrees)=17.7

OpenStudy (anonymous):

Thank you what about this one?

OpenStudy (anonymous):

find cos C... then use a calculator to get the angle in degrees...

OpenStudy (anonymous):

so I do cos 7/15?

OpenStudy (anonymous):

@xavier123

OpenStudy (anonymous):

cos inverse of (7/15)

OpenStudy (anonymous):

alright thank you, what about this one? @xavier123

OpenStudy (anonymous):

use tan(theta)

OpenStudy (anonymous):

what is theta?

OpenStudy (anonymous):

tan(43)

OpenStudy (anonymous):

= 0.93

OpenStudy (anonymous):

6/c=1.93... find c

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