There are 52 weeks in one year and Flora records her pet hamsters weight once every week for one year, so she recored 52 weight observations.
Answer:
The answer is:

which agrees with the last answer option (D) in the list.
Step-by-step explanation:
In order to add rational expressions, we need to express them with the same denominator. Therefore we examine what factors there are in the first denominator, which happens to be a difference of squares which is readily factored out as:

the second denominator consists of only one of these factors:
, then in order to express both rational expressions with the same common denominator, we multiply numerator and denominator of the second fraction by the factor: 
Then we get two expressions that can be easily added as shown below:

Answer: 2/7
Step-by-step explanation:
You subtract the y intercepts and put it over the x intercepts
2-(-2)=4 and 9-(-5)=14 so it is 4/14 which sinplifies to 2/7
Answer:
y=4
y=x+4
y=-2+4
Step-by-step explanation:
the trick is to consider x as 0.
Systematic Random Sample, Stratified Random Sample, and Simple Random Sample.