Answer:
EF ≈ 3.8
Step-by-step explanation:
Using the Sine rule in Δ DEF
=
, that is
=
( cross- multiply )
EF × sin50° = 3 × sin75° ( divide both sides by sin50° )
EF = ≈ 3.8
translate the word phrase into a math expression. nine more than five times a number
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