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Find the value of y. Cos 21=9/y

Find the value of y. Cos 21=9/y
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2 votes
Find the value of y. Cos 21=9/y

asked
User Spongebob Comrade
by
8.5k points

1 Answer

5 votes

y=9.64

—————

cos21=9/y

Cross Multiply

ycos21=9

Divide both sides by cos21 to isolate y

9/cos21 = 9.640304943

y=9.64

answered
User Tbodt
by
8.3k points
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