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Mathematics 9 Online
OpenStudy (anonymous):

Find each missing length to the nearest tenth of a unit.

OpenStudy (anonymous):

19 in. 38 in. 26.9 in. 32.9

OpenStudy (cwrw238):

cos 45 = 19 / x x = 19/cos 45 tan 45 = 19 / y where y = length other side y = 19 / tan 45

OpenStudy (anonymous):

so its 19?

OpenStudy (cwrw238):

one side is 19 (y) x = 19 / cos 45

OpenStudy (cwrw238):

your calculator will give you x

OpenStudy (anonymous):

so i have to divide 19/ cos 45?

OpenStudy (cwrw238):

yea

OpenStudy (anonymous):

i got 0.4222

OpenStudy (anonymous):

36.1682937 wait i got it

OpenStudy (cwrw238):

cos 45 = 0.707 x = 19 / 0.707 = 26.9

OpenStudy (anonymous):

oooooh..okay

OpenStudy (cwrw238):

yw

OpenStudy (anonymous):

thanks(:

OpenStudy (cwrw238):

no probs

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