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Mathematics, 21.09.2019 08:30, mazolethrin3461
How many 7-digit phone numbers can be formed if the first digit cannot be zero and no digit can be repeated
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Answers: 2
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In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.
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