This is a perfect example of exponential decay. In this case the growth factor should be represented by a fraction, and it is! This forest, starting out with apparently ( 800? ) pine trees, has a disease spreading, which kills 1 / 4th of each of the pine trees yearly. Therefore, the pine trees remaining should be 3 / 4.
Respectively 3 / 4 should be the growth factor, starting with 800 pine trees - the start value. This can be represented as such,
- where a = start value, b = growth factor, t = time ( <em>variable quantity</em> )
____
Thus, the function 
can model this problem. The forest after t years should have P( t ) number of pine trees remaining.
Answer:
5/3
Step-by-step explanation:
Plug the 3 into the equation.
3 = (-3/5)x+4
Solve.
-1 = (-3/5)x
5/3 = x
x = 5/3
Answer:
you will earn 4000 after 5 yr.
Step-by-step explanation:
to find out you need to multiply 20000 by .04 to get 800 per year then multiply that by 5 which gives you 4000
Answer:
-15
Step-by-step explanation:
when adding two negative numbers, just add like normal and put a negative sign.
The length of an equilateral triangle is C. 8.2 cm
