sarahbennett11p4yxlb
09.07.2019 •
Mathematics
Roberto notices that his hair is decreasing exponentially at a rate of 60% per year. if he starts with 100,000 hairs on his head,how many hairs will he have after 4 years? worth 98 points! !
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Ответ:
2560 hairs.
Step-by-step explanation:
Given,
The initial number of hairs, P = 100,000,
The rate of change per year, r = - 60 % = -0.6 ( Negative sign shows decreasing )
Thus, the population after x years,
Which is the function formula for the given scenario,
When, x = 4 years,
The number of hairs after 4 years would be,
Ответ:
x=5
Step-by-step explanation: