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Mathematics, 19.07.2021 18:40 antcobra

Please help!! i have no idea! A hot air balloon is released into the air. During its straight ascent, the angle of elevation was 15° and, 3 minutes later, the angle of elevation increased 20°. How fast is the balloon traveling, in km/h, if the angle measurements were taken 300m away from the launch site?

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Please help!! i have no idea! A hot air balloon is released into the air. During its straight ascen...
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