What’s the least common multiple of each group of numbers? A. 5 and 6 b. 2 and 9 c. 6 and 8 d. 2, 5, and 6
2 answers:
For this case we have that by definition, the LCM of two or more natural numbers is the smallest natural number that is a common multiple of all of them.
So:
A. 5 and 6
The LCM of 5 and 6 is the smallest positive integer that divides the numbers 5 and 6 without leaving a residue.
multiples:
5: 10,15,20,25,30,35,40,45
6: 12,18,24,30,36
B. 2 and 9
Multiplos:
2: 4,6,8,10,12,14,16,18
9: 18,27
C. 6 and 8
6: 12,18,24,30,36
8:16, 24
D. 2,5 and 6
Multiplos:
2: 4,6,8,10,12,14,16,18 ..., 30
5: 10,15,20,25,30,35,40,45
6: 12,18,24,30,36
Answer:
a.30
b.18
c.24
d.30
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BC bisects ∠ABD
This means BC divided ∠ABD into the two equal parts.
Therefore
As given
∠ABD = 52°
put this in the above value
we get
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