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Example: 23 is equal to 3 x 3
TRUE
FALSE
Example:
B
C
A
80o
40o
55o
Example:
4
6
and
2
3
True
False
Example:
Which fraction is equivalent to
12
18
?
1
2
2
3
1
6
Example:
1:2 is equivalent to 2:4
False
True
Example: What is line AD?
chord
arc
radius
Example:
0.5 - 0.2
0.5
0.3
0.7
Example:
22 = _____
22
4
1
Example:
23 = _____
6
8
5
Example: Find the range of the following: 1, 2, 4, 5, 5
Step 1: Sort the list → 1, 2, 4, 5, 5
Step 2: Highest number → 5; Lowest number → 1
Step 3: Difference between the highest and the lowest numbers in the list → 5 - 1 = 4. Therefore, the range is 4.
Example: 1, __ , 3, 4, 5; mean=3
Step 1: Let N be the missing number.
Step 2: We know, Mean = (Sum of all numbers)/(Number of numbers);
Therefore, Sum of all numbers = Mean x Number of numbers
→ 1 + N + 3 + 4 + 5 = 3 x 5 → N + 13 = 15 → N = 15-13 → N = 2
Example: What is the coefficient of 2y?
Answer: 2
Note: Numerical coefficient is the numeral part in a term.