Growth of Managed Srvices Almost half of companies let other firms manage some of their Web operations-a practice called Web hosting. Managed services-monitoring a customer's technology services is the fastest growing part of Web hosting. Managed services sales are expected to grow in accordance by the function f(t) = 0.469t² + 0.758t + 0.44 (0 ≤ t ≤ 10) where f(t) is measured in billions of dollars and t is measured in years, with t = 0 corresponding to 1999.t (a) Find the interval where f is increasing. (Enter your answer using interval notation.)