The function below takes a two parameters: a list called a_list and a value called a_value. complete the function to first check to see if the value is already in the list. if the value is already in the list, then do nothing. otherwise, append the value to the end of the list. your function doesn't need to return anything.

Explanation:

def checklist(a_list, a_value):// def //used to name a function, the //arguments being passed into the //functions are a_list and a_value

if a_value in list://if statement to

//check if it's in the list or not

print("")//print statement to do

//nothing

else://else statement for if the

//a_value is in a_list

a_list.append(a_value)//this adds

//the value to the list

unlike the threaded fasteners which are used to clamp the machine members, power screws are used to transmit power. common applications of power screws are: screw jacks: to lift weight. lead screw of lathe: for axial movement of tool and its precise positioning.

b. check your rearview mirror

explanation: