In a certain country, a letter up to 1 ounce requires postage in the amount of $0.42, and each additional ounce (or fraction of an ounce) has an additional cost. the function below represents the cost of mailing one letter in this country. josiah has two letters. the first weighs 2.9 ounces, and the second weighs 4.1 ounces. what is the total amount josiah can expect to pay for postage?

$1.84

Step-by-step explanation:

In a certain country, a letter upto 1 ounce requires postage of = $0.42

and each additional ounce (or fraction of an ounce) has an additional cost.

The function which represents this situation :

The weight of Josiah's first letter = 2.9 ounces (x= 2.9)

f(1) = 0.80

f(2) = 1.04

0.80 + 1.04 = $1.84

The total amount is $1.84, Josiah can expect to pay for postage

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step-by-step explanation:

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column