Question: A marine engineer is programming an underwater robot to respond to 3 types of underwater signals: sonar pings (S), light flashes (L), and pressure changes (P). If the robot sends a sequence of 8 signals consisting of 3 Ss, 3 Ls, and 2 Ps, how many distinct signal sequences can be created?

Fri, 01 May 2026 20:52:00 +0000

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