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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
@welshfella Hey man! Think you can help?
replace the t in c(t) with 1.3t and simpify
the composite function will b c(b(t))
c(1.3) =704t? Is that what it'll look like?
No all you need do is replace 704t by 704*1.3t and simplify it
what is 704 times 1.3 ?
With that info the answer's c[b(t)] = 915.2t?
Thank you, could you help me with 2 more?
i cant as i have to go right now
Darn, thanks for the help