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BC=? Please help fast, I'm lost.

BC Please Help Fast Im Lost class=

Sagot :

Answer:

30.2

Step-by-step explanation:

cos(58) = 16/BC

BC = 16/cos(58) = 30.2

jcherry99

Answer:

Step-by-step explanation:

You have to use the sine law

Start by finding < B

<B + 58 + 93 = 180          Combine

<B + 151 = 180                  Subtract 151 from both sides.

<B = 29

Now set up the sine law ratios

Sin (93) / BC = Sin (29) / 16

Sin(93) = 0.999

Sin(29) = 0.485

Now put these values into the Sin law found above.

0.999 / BC = 0.485 / 16                Cross Multiply

BC*0.485 = 16*0.999                    Combine

BC *0.485 = 15.984                       Divide by 0.485

BC = 15.984/0.485

BC = 32.857

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