Answer:
just multiply 239 * 45 in a paper you will get the answer
if you can't I will edit answer and show
The term ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons. hydrogen is a colorless, odorless, highly flammable gas, the chemical element of atomic number 1 carbonic acid <span>Carbonic acid is a chemical compound with the chemical formula H₂CO₃. It is also a name sometimes given to solutions of carbon dioxide in water, because such solutions contain small amounts of H₂CO these are all i know</span>
Answer:
a

b

Ca
Cb
Explanation:
From the question we are told that
The sample size is n = 100
The upper limit of the 95% confidence interval is b = 47.2 years
The lower limit of the 95% confidence interval is a = 34.5 years
Generally the sample mean is mathematically represented as

=> 
=> 
Generally the margin of error is mathematically represented as

=> 
=> 
Considering question C a
From the question we are told the confidence level is 90% , hence the level of significance is
=>
The sample size is n = 22
Given that the sample size is not sufficient enough i.e
we will make use of the student t distribution table
Generally the degree of freedom is mathematically represented as

=> 
=> 
Generally from the student t distribution table the critical value of
at a degree of freedom of 21 is
Considering question C b
From the question we are told the confidence level is 80% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of
is
Answer:
-2x
Step-by-step explanation:
1. Flip it around and then it turns Negative
2. The answer will be -2x!
Answer:
4L-8
Step-by-step explanation:
Formula: L+L+(L-4)+(L-4)
=L+L+L-4+L-4
=4L-8 (hope this explains you the problem)