Final answer:
The measurement 4MΩ translates into base units as 4 megohms, which is equal to 4,000,000 ohms.
Step-by-step explanation:
Nancy is looking at an electrical circuit drawing and sees the measurement: 4MΩ. This translates into base units as 4 megohms. The Ω symbol represents ohms, which is the unit of electrical resistance. The prefix 'M' stands for mega, which is a multiplier of 1 million. Therefore, 4MΩ is equal to 4,000,000 ohms.