Final answer:
The efficiency rate for southeastern can be determined using the formula: Efficiency rate = (Useful output energy / Input energy) x 100%. Given the data provided, you can find the efficiency rate by dividing the sum of the useful output energy by the sum of the input energy and multiplying by 100%.
Step-by-step explanation:
The efficiency rate for southeastern can be determined using the formula:
Efficiency rate = (Useful output energy / Input energy) x 100%
To calculate the efficiency rate, you need to know the useful output energy and the input energy.
Given the data provided in Table 10.6, you can find the efficiency rate by dividing the sum of the useful output energy by the sum of the input energy and multiplying by 100%.