Which function is used to add a range of cells? =SUM =AVERAGE =MAX =ADD

What is one of the main problems that can occur when implementing a large number of new systems within an organization?

Let r be a robotic arm with a fixed base and seven links. the last joint of r is a prismatic joint, the other ones are revolute joints. give a set of parameters that determines a placement of r. what is the dimension of the configuration space resulting from your choice of parameters?

He 98 pointsss how has computers changed over the years? how can they be used now? give details and such!