Answer:
9 and 15
Step-by-step explanation:
lowest common multiple 45
9, 18, 27, 36, 45, 54, 63, 72, 81, 90
15, 30, 45
HCF
3 X 3 = 9
3 X 5 = 15
3 is hcf
Answer:
D
Step-by-step explanation:
using the definition of n
= 
where n! = n(n- 1)(n - 2)......× 3 × 2 × 1
here n = 7 and r = 4, hence
7
= 
=
← cancel 3 × 2 × 1 leaving
7
= 7 × 6 × 5 × 4 = 840 → D
Answer: 2
Step-by-step explanation:

Answer:
Min - 42
Max - 99
M = 80
Q1 = 70
Q3 = 86
Step-by-step explanation:
The five-number summary is a descriptive statistic that provides information about a set of observations. It consists of the minimum, maximum, median, first quartile, and third quartile.
Answer:
Yes
Step-by-step explanation:
Plug your values into the Pythagorean Theorem to check if they make sense