The table of the number of dolphins is used to illustrate probability
The probability that a dolphin group is partaking in travel is 0.2063
<h3>How to determine the probability</h3>
From the table, we have:
- The total number of dolphin group = 189
- The total number of dolphin group that partake in travel = 39
So, the probability that a dolphin group is partaking in travel is calculated as:
p = 39/189
Divide
p = 0.2063
Hence, the probability that a dolphin group is partaking in travel is 0.2063
Read more about probability at:
brainly.com/question/25870256
Answer:
Step 4
Step-by-step explanation:
because 100/20=5
so 60/5=12
Multiply both sides of the equation by 20, the lowest common denominator of 5,4,2.
Add 4 and 3 to get 7.
Use the distributive property to multiply −4 times x 4/7.
Multiply −4 by 4/7.
![\large\displaystyle\text{$\begin{gathered}\sf \bf{-4x-7=10(2\times2+1) \ \ \to \ \ [Multiply \ 2\times2] } \end{gathered}$}](https://tex.z-dn.net/?f=%5Clarge%5Cdisplaystyle%5Ctext%7B%24%5Cbegin%7Bgathered%7D%5Csf%20%5Cbf%7B-4x-7%3D10%282%5Ctimes2%2B1%29%20%5C%20%5C%20%5Cto%20%5C%20%5C%20%5BMultiply%20%5C%202%5Ctimes2%5D%20%7D%20%20%5Cend%7Bgathered%7D%24%7D)
![\large\displaystyle\text{$\begin{gathered}\sf \bf{-4x-7=10(4+1) \ \ \to \ \ [Add] } \end{gathered}$}](https://tex.z-dn.net/?f=%5Clarge%5Cdisplaystyle%5Ctext%7B%24%5Cbegin%7Bgathered%7D%5Csf%20%5Cbf%7B-4x-7%3D10%284%2B1%29%20%5C%20%5C%20%5Cto%20%5C%20%5C%20%5BAdd%5D%20%7D%20%20%5Cend%7Bgathered%7D%24%7D)
![\large\displaystyle\text{$\begin{gathered}\sf \bf{-4x-7=10\times5 \ \ \to \ \ [Multiply] } \end{gathered}$}](https://tex.z-dn.net/?f=%5Clarge%5Cdisplaystyle%5Ctext%7B%24%5Cbegin%7Bgathered%7D%5Csf%20%5Cbf%7B-4x-7%3D10%5Ctimes5%20%5C%20%5C%20%5Cto%20%5C%20%5C%20%5BMultiply%5D%20%7D%20%20%5Cend%7Bgathered%7D%24%7D)
Add 7 to both sides.
![\large\displaystyle\text{$\begin{gathered}\sf \bf{-4x=-50+7 \ \ \to \ \ [Add] } \end{gathered}$}](https://tex.z-dn.net/?f=%5Clarge%5Cdisplaystyle%5Ctext%7B%24%5Cbegin%7Bgathered%7D%5Csf%20%5Cbf%7B-4x%3D-50%2B7%20%5C%20%5C%20%5Cto%20%5C%20%5C%20%5BAdd%5D%20%7D%20%5Cend%7Bgathered%7D%24%7D)
Divide both sides by −4.
The fraction 
can be simplified to 
by removing the negative sign from the numerator and denominator.
simplify
<h2>{ Pisces04 }</h2>
Since 90 is the mean, the z-score of the mean is always 0.
Answer:
60° is answer.it is right.thank you
