Posted by **lisa** on Sunday, September 26, 2010 at 7:59pm.

how do I solve this problem.

In 1920 the record for a certain race was 445.7 sec. In 1970, it was 44.2 sec. Let R(t) = the record in the race and t = the number of years since 1920.

a) Find a linear function that fits the data R(t) =

b) What is the predicted record for 2003?

c) What is the predicted record for 2006?

d) In what year will the predicted record be 42.70 seconds?

## Answer this Question

## Related Questions

- math - In 1920, the record for a certain race was 45.5 sec. In 1970, It was 44.5...
- algebra - ok i dont get this one in 1920 the record for a certain race was 45.9 ...
- math - in 1920 the record for a certain race was 46.4 sec. In 1960 it was 45.6 ...
- algebra - In 1920 the record for a certain race was 45.4 sec. in 1950, it was 41...
- math - in 1920 the record for a certain race was 46.9 sec. In 1990 it was 45.5 ...
- math (am i correct) - in 1920 the record for a certain race was 46.9 sec. In ...
- Algebra 1 - in 1920, the record for a certain race was 45.8 sec. In 1980, it was...
- Math 116 - In 1920, the record for a certain race was 45.7 sec. In 1950, it was ...
- math - In 1920 the record for a certain race was 46.6 sec. In 1950 it was 46.0 ...
- Math - In 1920, the record for a certain race was 46.6 sec. In 1980, it was 45.4...