Answer:
its 3/2
Step-by-step explanation:
Answer:
We are given:
Confidence level = 99%. Therefore, the critical value at 0.01 significance level using the standard normal table is given below:

Margin of error is given in the question as:

Since the previous proportion is not given, therefore, we need to assume 
Therefore, the sample size is:




Therefore, 664 sample observations are required.
Answer:
Y=2x+1
1 is the y and the 2 is the x value since every 2 blocks down and 1 over it will hit a corner or edge of box. Hopefully this helps
Let the amount of shells collected by Aaron be

and the amount of shells collected by Maria be

respectively. Then the following system of equations should be solved:

First of all, express

out of first equation:

Then, replace

in second equation with found expression and solve it:



Finally, replace

in first equation with found value and solve it too:


So, Aaron has found
7 shells while Maria has found
21.
Answer:
35
Step-by-step explanation:
63/1.8=35