Answer:
640 cm³
Step-by-step explanation:
Each prism has a volume of (4 cm) (4 cm) (20 cm) = 320 cm³.
There are two prisms, so the total volume is 640 cm³.
Answer: 16590
Step-by-step explanation:
The formula we use to find the sample size is given by :-
, where p = prior estimate of population proportion.
= Critical z-value (Two- tailed)
E= Margin of error .
Let p be the population proportion of cyanobacteria.
Given : E = 0.01
Critical value for 99% confidence interval : 
If Ian does not want to rely on previous knowledge , then we assume p=0.5 because the largest standard error is at p=0.5.
Now, the required sample size = 

Required sample size = 16590
Answer:
6%
Step-by-step explanation:
6 divided by 100 is 0.06.
then you multiply 0.06 by 135 and that is 8.1
then add 8.1 to 135 and you get 143.1 or 143.10
Answer:basically if what they want you to prove is correct say it is correct and why is it correct
Step-by-step explanation: