The answer to the questions
Jessica and Josh are selling Entertainment Books to raise money for the art room at their school. One book sells for $15. Jessic
a received the prize for selling the most books in the school. Jessica sold 18 times more books than Josh. Together they sold 209 books. How many did each one of them sell?
1 answer:
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Answer:
BC ≈ 14.7 m
Step-by-step explanation:
Using the Sine rule in Δ ABC
=
To find ∠ A subtract the 2 given angles from 180°
∠ A = 180° - (90 + 28)° = 180° - 118° = 62°
Then
=
( cross- multiply )
BC × sin28° = 7.8 × sin62° ( divide both sides by sin28° )
BC = ≈ 14.7 m ( to 3 significant figures )