Explain why incremental development is the most effective approach for developing business software systems. why is this model less appropriate for real-time systems engineering?

Explanation:

Typically, business software technologies are complex, and software strenuous. Business software applications are also often upgraded for changes in business goals or procedures. Real-time systems usually require a lot of hardware components that are quite difficult to change and cannot be upgraded Usually, actual-time safety critical systems that required to be built based on well-planned processes.

the answer would be a

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6