Problema Solution
the formula R= -0.075t+3.85 can be used to predict the world record in the 1500 meter run, t years after 1939. Determine an inequality that identifies the year in which the world record will be less than 3.4 minutes
Answer provided by our tutors
R = -0.075t + 3.85
=> 3.4 >-0.075t + 3.85
=> 0.075t > 0.45
=> t > 6