Identify the terms, like terms, coefficients, and constants in 5n - 2n – 3 + n.
1 answer:
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Answer:
BC ≈ 19.4 cm
Step-by-step explanation:
using the cosine ratio in the right triangle
cos71° = =
=
( multiply both sides by BC )
BC × cos71° = 6.3 ( divide both sides by cos71° )
BC = ≈ 19.4 cm ( to 3 sig. figs )