What is the LCM of 4, 5, 6 and 9?

180

Step-by-step explanation:

2 goes in 4 and 6 equals to 2 and 3

2 also goes in 2 equals to 1

3 goes in 3 and 9 equals to 1 and 3

3 also goes in 3 equals to 1

5 goes in 5 equals to 1

Multiplication of 2,2,3,3,and 5 gives us 180

two data sets with the same median will not have the same varaibility

step-by-step explanation:

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)