Answer: I think it's 12
Step-by-step explanation:
Answer:
It's exactly normal, because both populations are normally distributed.
Step-by-step explanation:
Khan Academy
The answers are 297 trout after 1 year and 1414 trout after 10 years. This can be answered using the population growth formula. For the detailed calculations, please refer to the attachment.
Answer: 
Step-by-step explanation:
Let
represents the standard deviation .
Given : Last year, the standard deviation of the ages of the students at UA was 1.8 years.
The researcher are interested in testing to see if there has been a significant change in the standard deviation of the ages of the students at UA.
We know that the null hypothesis always contains the equal signs, then the null and alternative hypothesis is given by :-

Answer:
A=27 cm^2
B=24 cm^2
C=26 cm^2
D=28 cm^2
Step-by-step explanation:
Break each problem down into individual shapes.
For instance, A can be split into a 3 by 3 square and a 6 by 3 square.
Get the area by multiplying the length & height: A = L * H
For the triangles the area is the same equation divided by 2 A=LH/2
Shapes with unclear dimensions like C can be skipped and have their area revealed through process of elimination.