The function h(t) = −5t2 + 20t shown in the graph models the curvature of a satellite dish: What is the domain of h(t)? A x ≥ 0 B 0 ≤ x ≤ 4 C 0 ≤ x ≤ 20 D All real numbers

The function h(t) = −5t2 + 20t shown in the graph models the curvature of a satellite dish: What is the domain of h(t)? A x ≥ 0 B 0 ≤ x ≤ 4 C 0 ≤ x ≤ 20 D All real numbers

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