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egracer
 one year ago
Sandi tracks her calories burned during water aerobics class. The number of calories she burns is expressed by the function c(t) = 350t, where t is the number of hours spent doing water aerobics.
To burn more calories, Sandi wears ankle weights during her class. The number of calories she burns while wearing ankle weights is expressed by the function b(c) = 1.2c, where c is the number of calories burned doing water aerobics without weights.
Which of the following composite functions expresses the calories, as a function of time, Sandi burns while doing water aerobics with ankle weights?
egracer
 one year ago
Sandi tracks her calories burned during water aerobics class. The number of calories she burns is expressed by the function c(t) = 350t, where t is the number of hours spent doing water aerobics. To burn more calories, Sandi wears ankle weights during her class. The number of calories she burns while wearing ankle weights is expressed by the function b(c) = 1.2c, where c is the number of calories burned doing water aerobics without weights. Which of the following composite functions expresses the calories, as a function of time, Sandi burns while doing water aerobics with ankle weights?

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egracer
 one year ago
Best ResponseYou've already chosen the best response.0the options are b[c(t)] = 351.2t b[c(t)] = 420t c[b(t)] = 351.2t c[b(t)] = 420t

egracer
 one year ago
Best ResponseYou've already chosen the best response.0Open study kind of sucks nobody ever helps me..

egracer
 one year ago
Best ResponseYou've already chosen the best response.0Is it C????? thats what i got through by calculations

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1first find b(t) if b(c) = 1.2c, then what is b(t)?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1uh, not quite all we're doing is replacing "c" with "t" so, if b(c) is 1.2c, then what is b(t)?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1hint: all you need to do is replace "c" with "t"

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1right now, we have b(t) = 1.2t now we need to find c(b(t)) if c(t) = 350t, then what is c(b(t))? hint: replace "t" with "1.2t"

egracer
 one year ago
Best ResponseYou've already chosen the best response.0im not really sure I'm a little confused

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1c(t) = 350t c(b(t)) = c(1.2t) = ?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1almost... if c(t) is 350 times t, then c(1.2t) is 350 times ____ fill in the blank

egracer
 one year ago
Best ResponseYou've already chosen the best response.0that is so confusing could you break it down some more its really confusign me

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1c(t) = 350*t c(1.2t) = 350*___ fill in the blank

egracer
 one year ago
Best ResponseYou've already chosen the best response.0350 times 1.2 thats all i can think of

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1almost, you're missing something important

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1yeah, and what do you get when you multiply?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1ah, it should be B, my mistake b(c(t)) = 420t

egracer
 one year ago
Best ResponseYou've already chosen the best response.0EVERYONE B WAS CORRECT.
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