Answer:
sample_str = "Help me pass!" 
first_chars = sample_str[0:4]
print('First four character: ', first_chars)
Explanation:
sample_str = "Help me pass!" 
first_chars = sample_str[0:4]
H has index 0, e has index 1, l has index 2, p has index 3. the space has an index as well, etc.
 
        
             
        
        
        
Answer:
b. False
Explanation:
If you execute an infinite recursive function on a computer it will NOT execute forever.
 
        
             
        
        
        
Traditional crime scenes have physical evidence while electronic crime scenes have digital evidence such as IP address, geolocation, and user data.
        
             
        
        
        
Answer:
(a) 1 to 8
(b) 1 to 6
Explanation:
A "leaf" is a node at the end of a binary tree (in other words, it has no "children").  All other nodes are "non-leaf" nodes.
The smallest number of leaves is 1.  That would be a binary tree that's just a straight line; each node will have only 1 child, until you get to the last node (the leaf).
To find the largest number of leaves, we start drawing a full binary tree.  A complete tree with 15 nodes has 7 non-leaf nodes and 8 leaf nodes.  A full tree with 6 non-leaf nodes can have up to 6 leaf nodes.