Answer:
core engine or system software.
Explanation:
just because
 
        
                    
             
        
        
        
Answer:
1. 5
2. Because they let us quickly process the contents of an array, which have many values.
Explanation:
 
        
             
        
        
        
<em>r = 15 cm</em>
<em>formula</em>
<em>V = πr²×h/3</em>
<em>replace</em>
<em>4950 = 22/7×r²×21/3</em>
<em>4950 = 22/7×r²×7</em>
<em>4950 = 22×r²</em>
<em>r² = 4950/22</em>
<em>r² = 225</em>
<em>r = √225</em>
<em>r = √15²</em>
<em>r = 15 cm</em>
 
        
             
        
        
        
B. format because changing the brightness of the photo is changing its default format
        
                    
             
        
        
        
Answer:
Hi there! Please find the answer below. 
Explanation:
The program below demonstrates how each of the requirements can be coded in a simple Python script. To copy the array, we can use the copy() method of the array. To calculate the diff, we can use a few different techniques, so I have implemented it using a loop over the arrays and just storing and displaying the difference in the 2 arrays.
new_string.py
def add_test_score(score):
  test_score.append(score);
contact_hash = {}
test_score = []
print("Enter 5 test scores: ");
for x in range(0, 5):
    input_string = input("Enter test score " + str(x + 1) + ": ")
    add_test_score(int(input_string));
print(test_score);
test_score_copy = test_score.copy();
for e in test_score_copy:
    if e < 60:
        test_score_copy[test_score_copy.index(e)] += 10;
diff = [];
for e in test_score:
    print(test_score[test_score.index(e)]);
    print(test_score_copy[test_score.index(e)]);
    if not test_score[test_score.index(e)] == test_score_copy[test_score.index(e)]:
        diff.append(e);
print(diff);