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Mathematics 8 Online
OpenStudy (anonymous):

Referring to the figure, find the missing length x. Round the answer to the nearest hundredths. http://www.ppstest2.com/images2/AL12014.jpg @AJ01

OpenStudy (anonymous):

use cos

OpenStudy (anonymous):

so cos8*8+45 or how

OpenStudy (anonymous):

cos(45)=8/x

OpenStudy (anonymous):

so i multiply cos(45)*8 to get x

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

|dw:1415946571273:dw|

OpenStudy (anonymous):

x=8/cos(45(

OpenStudy (anonymous):

wait cos(45) = 8/x sqrt(2)/2 = 8/x x*sqrt(2) = 2*8 x*sqrt(2) = 16 x = 16/sqrt(2) x = 16*sqrt(2)/2 x = 8*sqrt(2) x = 11.31 thats how you do it right

OpenStudy (anonymous):

yes

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