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Sam purchased a new car for [tex]$\$17,930$[/tex]. The value of the car depreciated by [tex]$19\%$[/tex] per year. When he trades the car in after [tex]$x[tex]$[/tex] years, the car is worth no more than [tex]$[/tex]\$1,900$[/tex].

Fill in the values of [tex][tex]$a, b$[/tex][/tex], and [tex]$c$[/tex] to complete the exponential inequality of the form [tex]$a(b)^x \leq c$[/tex] that can be used to determine the number of years after which the car is worth no more than [tex][tex]$\$[/tex]1,900$[/tex].

[tex]$a(b)^x \leq c$[/tex]


Sagot :

To formulate the exponential inequality for determining the number of years after which Sam's car is worth no more than [tex]$1,900$[/tex], we need to identify the values of [tex]\( a \)[/tex], [tex]\( b \)[/tex], and [tex]\( c \)[/tex].

Given the details:
- Sam purchased the car for [tex]$17,930, so \( a = 17,930 \). - The car depreciates by 19% each year, meaning it retains 81% of its value each year. Therefore, \( b = 0.81 \). - The car is worth no more than $[/tex]1,900 after [tex]\( x \)[/tex] years, so [tex]\( c = 1,900 \)[/tex].

Putting these values into the inequality, we have:
[tex]\[ 17,930(0.81)^x \leq 1,900 \][/tex]

Thus, the values are:
[tex]\[ a = 17,930 \][/tex]
[tex]\[ b = 0.81 \][/tex]
[tex]\[ c = 1,900 \][/tex]

So, the complete inequality will be:
[tex]\[ 17,930(0.81)^x \leq 1,900 \][/tex]
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