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3 years ago

Which expression represents the approximate length of bc?

Mathematics

2 answers:

bonufazy [111]3 years ago

6 0

Hello from MrBillDoesMath!

Answer:

BC = 3 * sin (66)/ sin(38)

Discussion:

From the law of sines:

sin(38) /3 = sin(66)/ BC

BC * ( sin(38)/3 ) = sin(66) => multiply both sides by BC

BC = sin(66) / ( sin(38)/3) => multiply both sides by ( 3/sin(38) )

BC = 3 * sin (66)/ sin(38)

which is the first choice.

Regards,

MrB

P.S. I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!

sashaice [31]3 years ago

4 0

Answer:

answer is A

Step-by-step explanation:..

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