Line above the repeating number
Given:
The angles are:
Example 
1. 
2. 
3. 
4. 
5. 
To find:
The complimentary angle of the given angles.
Solution:
If two angles are complimentary, then their sum is 90 degrees.
Example: Let x be the complimentary angle of
, then



Similarly,
1. The complimentary angle of
is:

2. The complimentary angle of
is:

3. The complimentary angle of
is:

4. The complimentary angle of
is:

5. The complimentary angle of
is:

Therefore, the complimentary angles of
are
respectively.
Answer:
1,712,304 ways
Step-by-step explanation:
This problem bothers on combination
Since we are to select 5 subjects from a pool of 48 subjects, the number of ways this can be done is expressed as;
48C5 = 48!/(48-5)!5!
48C5 = 48!/43!5!
48C5 = 48×47×46×45×44×43!/43!5!
48C5 = 48×47×46×45×44/5!
48C5 = 205,476,480/120
48C5 = 1,712,304
Hence this can be done in 1,712,304ways
Answer:
The answer is 960.
8 x 12 x 20 is 1920. 1920 divided by 2 is 960.