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anonymous

  • one year ago

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  1. anonymous
    • one year ago
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    David tracks his calories burned while training for a meet. The number of calories he burns is expressed by the function c(t) = 704t, where t is the number of hours spent swimming. To burn more calories, David wears flippers while he swims. The number of calories he burns while wearing flippers is expressed by the function b(c) = 1.3c, where c is the number of calories burned while swimming without flippers. Which of the following composite functions expresses the calories, as a function of time, David burns while swimming with flippers? b[c(t)] = 915.2t b[c(t)] = 705.3t c[b(t)] = 915.2t c[b(t)] = 705.3t

  2. anonymous
    • one year ago
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    @undeadknight26

  3. anonymous
    • one year ago
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    @mathmath333

  4. anonymous
    • one year ago
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    @welshfella Hey man! Think you can help?

  5. welshfella
    • one year ago
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    replace the t in c(t) with 1.3t and simpify

  6. welshfella
    • one year ago
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    the composite function will b c(b(t))

  7. anonymous
    • one year ago
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    c(1.3) =704t? Is that what it'll look like?

  8. anonymous
    • one year ago
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    541?

  9. welshfella
    • one year ago
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    No all you need do is replace 704t by 704*1.3t and simplify it

  10. welshfella
    • one year ago
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    what is 704 times 1.3 ?

  11. anonymous
    • one year ago
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    915.2

  12. anonymous
    • one year ago
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    With that info the answer's c[b(t)] = 915.2t?

  13. welshfella
    • one year ago
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    yes

  14. anonymous
    • one year ago
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    Thank you, could you help me with 2 more?

  15. welshfella
    • one year ago
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    i cant as i have to go right now

  16. anonymous
    • one year ago
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    Darn, thanks for the help

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