Mathematics, 04.03.2021 01:00, rubencharomarti

If the formula R=-0.037t + 50.1 can be used to predict the world record in the 400-meter dash 400-m after 1925, for what years will the world records be 48.6 seconds or less?

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If the formula R=-0.037t + 50.1 can be used to predict the world record in the 400-meter dash 400-m...

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If the formula R=-0.037t + 50.1 can be used to predict the world record in the 400-meter dash 400-m after 1925, for what years will the world records be 48.6 seconds or less?​

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If the formula R=-0.037t + 50.1 can be used to predict the world record in the 400-meter dash 400-m after 1925, for what years will the world records be 48.6 seconds or less?