A triangle has side lengths 3.4 cm, 4 cm, and 5.2 cm. The angle measures are 40°, 50°, and 90°.
2 answers:
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A town orchestra needs 3 new flute players and 4 new trumpet players. 8 flutists and 11 trumpeters try out, then the orchestra should select 3 flutists from 8 and 4 trumpeters form 11.
They can choose 3 flutists from 8 in
ways.
They can choose 4 flutists from 11 in
ways.
Use the product rule: 56·330=18480 ways for conductor to choose his new members.