Question

mr jones estimates his profit starting in 2006 will be given by the formula p=7t^2-14t+10 where t is number of years and p is the profit.if this formula is correct,when will mr.jones have a profit of more than $1000

Answer 1

solving for 7t^2-14t+10>1000, we get:
7t^2-14t-990>0
use quadratic equation to get:
t> (7+ sqrt(6979))/7; thus:
t> ~12.93 years

Answer 2

explain in more detail plz