document.write( "Question 293047: In 1920, the record for a certain race was 45.7 sec. In 1980, it was 43.9 sec. Let R(t)= the record in the race and t= the number of years since 1920. Solve. \n" ); document.write( "

Algebra.Com's Answer #211549 by richwmiller(17219) $\"\"$ $\"About$

You can put this solution on YOUR website!
There is nothing to solve.
\n" ); document.write( " \n" ); document.write( "

\n" );