slonzyy5855 slonzyy5855 15-01-2024 Mathematics contestada The speed of a runner in miles per hour on a straight trail is modeled by f(m)=1/10(-2m³+ 9m²-12m) 7 what is the maximum speed of the runner for m³. (A) 6.5 (B) 6.6 (C) 7.0 (D) 7.5