tyriquemills0 tyriquemills0

02-05-2021
Mathematics

contestada

Given that x = 5.4 m and 0 = 26°, work out BC rounded to 3 SF.
B
O
ou
A
x
С
The diagram is not drawn accurately.
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BC=
m

Given that x 54 m and 0 26 work out BC rounded to 3 SFBOouAxСThe diagram is not drawn accuratelyWBCm class=

Respuesta :

jimrgrant1 jimrgrant1

02-05-2021

Answer:

BC ≈ 4.85 m

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos26° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{BC}{AC}[/tex] = [tex]\frac{BC}{5.4}[/tex] ( cross- multiply )

5.4 × cos26° = BC , then

BC ≈ 4.85 m ( to 3 s f )

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