There’s no slope through (5,-4)
        
             
        
        
        
The '68-95-99.7' rule says
-About 68% of values fall within one standard deviation of the mean.
-About 95% of the values fall within two standard deviations from the mean.
-Almost all of the values — about 99.7% — fall within three standard deviations from the mean.
Here 
Therefore, the probability 

The required probability

 
        
             
        
        
        
The second term of the given sequence aₙ = -5(n² + 1n) when solved gives us; a₂ = -20
<h3>How to find the nth term of a sequence?</h3>
We are given the formula for a sequence as;
aₙ = -5(n² + 1n)
Where n is the position of the term.
Now, for the first term, we will have;
a₁ = -5(1² + 1(1))
a₁ = -10
The second term of the sequence is;
a₂ = -5(2² + 1(2))
a₂ = -20
Read more about Sequence at; brainly.com/question/6561461
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The equation to solve would be setting 
60×- the m plus 75,the b set to 200 the maximum that's wanted to be used. the equation will look like this 
200=60x+75
-75. -75
125=60x
125/60 60x/60
2.08=x
 and since you cant round the time the answer will be left at 2