<span>The centroid of a triangle is the point of intersection of its medians. These are the lines joining each vertex with the midpoint of the opposite side. </span>
Answer:
c
Step-by-step explanation:
c is the only number that end with 9 and in decimal
Answer:
Cannot be factored
Step-by-step explanation:
Given

Required
Factorize
Take LCM

<em>The expression cannot be factored</em>
Answer:
Step-by-step explanation:
Constant of proportionality is defined as the ratio between two directly proportional quantities.
If suppose x and y are the two directly proportional quantities, then we can say that constant of proportionality is given as 
Here in the question,

Dividing both sides by x, we get


So, constant of proportionality is 