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anonymous

  • 5 years ago

Women’s records in the women’s 1500-m run. The formula R =−0.0026? + 4.0807 can be used to predict the world record, in minutes, for the 1500-m run t years after 1900. Determine (in terms of an inequality) those years for which the world record will be less than 3.8 min.

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  1. anonymous
    • 5 years ago
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    - 0.0026 t + 4.0807 <3.8 -0.0026t < -0.2807 0.0026t > 0.2807 t > 0.2807/0.0026 t>107.96

  2. anonymous
    • 5 years ago
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    can you explain how you got that, simply lol

  3. anonymous
    • 5 years ago
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    i'll explain but is it ? or t

  4. anonymous
    • 5 years ago
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    ? or t? what ya mean

  5. anonymous
    • 5 years ago
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    in the formula R u have typed ? after 0.0026, what is it

  6. anonymous
    • 5 years ago
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    oh its a ? not a letter. i just rechecked the question

  7. anonymous
    • 5 years ago
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    if ? implies the number of years world record will be less than 3.8 min. which is R in the problem, we should take < inequality and establish the result

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