Solve the question of and select the option from the choices A through D/E. Check your Answer and view the explanation.
f(a) = 1 3 (a3 + 5a – 15)
Find a = 3.
Substitute 3 for all a.
(1/3) × (33 + 5(3) – 15)
(1/3) × (27 + 15 – 15)
(1/3) × (27) = 9