20.7k views
5 votes
A factory produces bicycles at a rate of 100+ 0. 2t² - 1. 1t bicycles per day (t in days since the beginning of the month).

How many bicycles were produced in days 8 through 21?

User Aligf
by
7.9k points

1 Answer

1 vote

Answer: 931

Step-by-step explanation:
We can start by finding the total number of bicycles produced over a certain period by integrating the production rate function with respect to time, t. Let's say we want to find the number of bicycles produced over a period of 10 days, starting from day 1. The total number of bicycles produced during this period would be:

∫ (100 + 0.2t² - 1.1t) dt from t = 1 to t = 10

= [100t + (0.2/3)t³ - (1.1/2)t²] from t = 1 to t = 10

= [100(10) + (0.2/3)(10)³ - (1.1/2)(10)²] - [100(1) + (0.2/3)(1)³ - (1.1/2)(1)²]

= [1000 + 33.33 - 55] - [100 + 0.333 - 0.55]

= 913 bicycles

Therefore, the factory produces 913 bicycles over a period of 10 days, starting from day 1.

User Lidkxx
by
8.2k points