Anew car that sells for $19,000 depreciates (decreases in value) 21% each year. what is the decay factor, b? 0.79 0.21 79 21

0.79

Step-by-step explanation:

Given: The cost price of car = $19,000

The rate of depreciation = 21 % = 0.02

The exponential decay equation (depreciation) is given by :-

, where A is the initial amount and b is the decay factor for x years such that , where r is the rate of decay.

If we substitute the value of r , we get

The decay factor =

x = 17

step-by-step explanation:

1st step: isolate x.

24 - 3x = -27

-24         -24

-3x   =   -51

2nd step: divide.

-3x     =   -51

  3             3

  x       =     17

hope this