Answer:
about 70 years
Step-by-step explanation:
Life expectancy (e) improves by 5.7 years every 10 years, so 5.7/10 = 0.57 years per year. For t years after 2009, it can be modeled by ...
e = 0.57t +80
We want to find when that is 120:
120 = 0.57t +80
40 = 0.57t
40/0.57 = t ≈ 70.2
About 70 years from 2009, humanity may achieve a life expectancy of 120 years.
Answer:
It is linear because the ratio of the change in the final cost compared to the rate of change in the price tag is constant
Answer:
Step-by-step explanation:
(a + b) * (
) = 
=
Answer:
Step-by-step explanation:
<u>The diagram includes the interval:</u>
<u>The integer values in the given interval are:</u>
Answer:b
Step-by-step explanation:I did it on my quiz
