Questions 4 and 5 are based on the following information: The daily rate of sales of a product (in units per day) is approximated by the exponential function
S(t) = 1800 + 1500e−0,3t+1,5
with t the number of days it has been on the market.
After 20 days the rate of sales of the product is approximately
1. 37.
2. 108.
3. 1 817.
4. 1 783.
After how many days, rounded to a whole number, will the rate of sale be 2 000 units per day?
1. 4
2. 5
3. 11
4. 12
Question 4
Option 3 is correct
Question 5
Option 4 is correct
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