Question

Please help

Answer 1

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

Answer 2

@undeadknight26

Answer 3

@mathmath333

Answer 4

@welshfella Hey man! Think you can help?

Answer 5

replace the t in c(t) with 1.3t and simpify

Answer 6

the composite function will b c(b(t))

Answer 7

c(1.3) =704t? Is that what it'll look like?

Answer 8

541?

Answer 9

No all you need do is replace 704t by 704*1.3t and simplify it

Answer 10

what is 704 times 1.3 ?

Answer 11

915.2

Answer 12

With that info the answer's c[b(t)] = 915.2t?

Answer 13

yes

Answer 14

Thank you, could you help me with 2 more?

Answer 15

i cant as i have to go right now

Answer 16

Darn, thanks for the help