During a regular respiratory cycle, the volume of air in liters in the human lungs can be described by the function V(t) = 0.173t + 0.152t2 - 0.035t3, where t is the time in seconds.
a. Estimate the real zeros of the function by graphing.
b. About how long does a regular respiratory cycle last?
c. Estimates the time in seconds from the beginning of this respiratory cycle for the lungs to fill to
their maximum volume of air.

your answer is -9

step-by-step explanation:

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)

8.3 and the 3 is repeating

hope this .

46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm