This is the 4520th most frequent Russian word.
выполнены
"Completed" or "fulfilled."
The word 'выполнены' functions as a short participle indicating that the action (completion) has been performed with reference to the tasks.
Задания выполнены вовремя.
The tasks are completed on time.
Here 'выполнены' also acts as a short participle of a passive expression, focusing on the fulfillment of orders.
Все заказы выполнены в соответствии с инструкциями.
All orders are fulfilled according to the instructions.
The participle 'выполнены' is used passively to denote how the projects' execution has been achieved.