8/16/2019 Chances of 60-Year-Olds Surviving to Various Ages The functions f(x) = -2.9x + 286 and g(x) 0.01x-5.1x + 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? 16. 84 90- 75- 60-f 45- 55 24 30- 3.7 15- 0 100 90 80 70 Age a. Select the correct choice below and fill in the answer box(es) to complete your choice. (Simplify your answers.) A. f(80) which means that the chance of a 60-year-old surviving to the age of is 80% O B. f(80)= which means that the chance of a 60-year-old surviving to the age of 80 is b. Select the correct choice below and fill in the answer box(es) to complete your choice. (Simplify your answers.) O A. g(80) which means that the chance of a 60-year-old surviving to the age of 1 is 80% OB. g(80) which means that the chance of a 60-year-old surviving to the age of 80 is c. Determine the better model for the chance of surviving to age 80. Choose the correct answer below. O A. Neither f(x) nor g(x) are good models. B. The function g(x) is a better model. C. The function f(x) is a better model. O D. The functions f(x) and g(x) are equally good models. 8/11 Chance of survival

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Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.