in 2000, the life expectancy of females bom in a certain country was 79.9 years. In 2005, it was 82.1 years. Let Et) represent the life expectancy and t the number of years after 2000. Assume that a constant rate of change exists for the model formed a) Find a linear function that fits the data. b) Use the function of part (a) to predict the life expectancy of females in 2020. a) Let E(t) represent the life expectancy andt the number of years after 2000. Write the linear function. E() =D (Simplify your answer. Use integers or decimals for any numbers in the expression.) b) The predicted life expectancy of females in 2020 is (Type an integer or a decimal.)

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Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.