Answer:

Step-by-step explanation:

Answer:
4x^2-2x+7
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
X = 18 because the two values are equal to each other
Answer:
Precision = 0.625
Recall = 0.5
Step-by-step explanation:
Data:
Let: total documents = 10
relevant documents = 5
if 2 documents are removed, the total number of documents remaining will be
documents remaining = total - 2 documents
= 10 - 2
= 8 documents
therefore, the precision will be = 
Recall = 