Posted by **saud** on Sunday, December 4, 2011 at 6:23pm.

A factory produces bicycles at a rate of 80+0.3t^2−1.1t bicycles per week (t in weeks). How many bicycles were produced from day 15 to 21?

- math -
**Steve**, Monday, December 5, 2011 at 10:33am
Intgerate (.3t^2 - 1.1t + 80) dt from 15 to 21

= .1t^3 - .55t^2 + 80t [12,15]

= 1413 - 1063

= 360

- math -
**Kat**, Monday, April 30, 2012 at 8:44pm
Very useful thanks!

for mine I had 8 to 28 days, and my rate was different. I just typed: 0 to 3 integral 105+02t^2−09t into wolfram alpha and got 312 bicycles.

## Answer This Question

## Related Questions

- Math Calc - A factory produces bicycles at a rate of 100+0.4t2−0.7t ...
- Algebra - The RideEm Bicycles factory can produce 140 bicycles in a day at a ...
- Math - Pedro built nine bicycles in 25 h. At this rate, how many bicycles will ...
- Algebra/Quadratic Functions - The production cost (£C) ofa bicycle in a factory...
- economics - Suppose that bicycles are produced by a perfectly competitive, ...
- MATH - The equation C(x) = 100x+100,000/x models the average cost (C(x)) for a ...
- hurestics - There are 74 tricycles and bicycles in a shop. There are 87 more ...
- Math - The owner of a bicycle factory said about 15,000 bicycles were made last ...
- math - a cycle company make bicycles, tricycles an unicycles. Last week they ...
- College Algebra - A company builds bicycles. Their fixed cost is 300,000 and it ...

More Related Questions