Question

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Answer 1

a≈4.68

Explanation:

have a good one!!!

Answer 2

9514 1404 393

Answer:

a ≈ 4.68

Explanation:

The law of cosines tells you ...

a² = b² +c² -2bc·cos(A)

a = √(b² +c² -2bc·cos(A))

a = √(5² +8² -2·5·8·cos(33°)) = √(25 +64 -80·0.83867) ≈ √21.906

a ≈ 4.68