<span><span><u>Answer </u>
</span><span>10+9=19
75÷3=19
</span><span><u>Explanations
</u>
</span><span>Expression is a mathematical statement that contain variables like a and b combined by operational signs. This sign can be ×,÷,+,-etc
A number like 19 has so many expression, for example we have;
10+9=19
57÷3=19
34-15=19
We can have as many expressions as possible. They are actually infinite.
</span></span>
The formula is

replace c with 16 and solve

your answer will be
A≈20.37
The answer is the second option.
Answer:
B. is the answer
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
Standard Deviation, σ = 6.5828058860438
Step-by-step explanation:
<u>Data Set:</u> 20, 11, 27, 13, 29, 20
The total numbers in the data set
Count, N = 6
The sum is all values in the data set is added up
20 + 11 + 27 + 13 + 29 + 20
Sum, Σx: 120
The mean is the sim / N
Mean, μ: 20