Evaluate each expression 8-(-5)-3
2 answers:
<h3>Answer:</h3>
In this question, we're evaluating the given expression.
The given expression is:
We would simply solve the equation until we reach our final answer.
Solve:
A friendly reminder is when you see something like "-(-", you would turn it into a plus sign.
When you're done solving, you should get 10.
This means that 10 would be your final answer.
<h3>I hope this helped you out.</h3><h3>Good luck on your academics.</h3><h3>Have a fantastic day!</h3>Answer:
10
Step-by-step explanation:
When in doubt, use a calculator.
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According to the distributive property, a factor outside parentheses multiplies each term inside parentheses. The product of two negative numbers is positive, so you have ...
8 + (-1)(-5) -3
= 8 + 5 - 3
Adding in the usual way, you get ...
= 13 - 3
= 10
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The standard deviation of the frequency distribution is 5.54
<h3>How to determine standard deviation?</h3>The table of values is given as:
x f(x)
0-3 13
4-7 13
8-11 10
12-15 11
16-19 0
20-23 3
Rewrite the table by calculating the class midpoints:
x f(x)
1.5 13
5.5 13
9.5 10
13.5 11
17.5 0
21.5 3
Start by calculating the mean using:
This gives
Evaluate
The standard deviation is then calculated as:
So, we have:
Evaluate
Solve
Hence, the standard deviation is 5.54
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