Homework: Combining Functions Score: 0 of 3 pts 15 of 25 (10 complete) HW Score:

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Homework: Combining Functions Score: 0 of 3 pts 15 of 25 (10 complete) HW Score: 29.859 1.2.101 Quest The functions f(x)--2.9x+ 286 and g(x)= 0.01 x2-4.9x + 370 model the chance, as a percent, that a 60-year-old will survive to age x. The bar graph to the right shows the chances of 60-year-olds surviving to various ages. a. Find and interpret f(80). b. Find and interpret g(80) c. Which function serves as a better model for the chance of surviving to age 80? Chances of 60-Year-Olds Surviving to Q Various Ages 85 n 24 2.7 70 80 90 100 Age (Simplify your answers.) OA. f80)s , which means that the chance of a 60-year-old surviving to the age of 80 is % O B. 180), . which means that the chance of a 60-year old surviving to the age of is 80% Click to select and enter your answer(s) and then click Check Answer 2 parts Clear All

Explanation / Answer

f(x)= -2.9x+286

F(80)=286-232= 54

A) 54 % is chance of surviving

B) similarly substitute f(80) in equation 2

We get 434-392= 42

42% is chance of surviving

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