Answer: -1/2
Step-by-step explanation:
The average rate of change is 
. Since a=-1 and b=1. We can plug them into the equation and solve.
![\frac{[1^2-1-1][(-1)^2-(-1)-1)]}{1-(-1)} =\frac{(-1)(1)}{2} =-\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5B1%5E2-1-1%5D%5B%28-1%29%5E2-%28-1%29-1%29%5D%7D%7B1-%28-1%29%7D%20%3D%5Cfrac%7B%28-1%29%281%29%7D%7B2%7D%20%3D-%5Cfrac%7B1%7D%7B2%7D)
At 95% confidence interval, the z score is 1.96. Using the
formula:
Confidence Interval = x ± z s / sqrt (n)
where x is the average time served, s is standard deviation
and n is number of samples
Confidence interval = 7.5 ± (1.96 * 3) / sqrt (400)
Confidence interval = 7.5 ± 0.294
<span>Confidence interval = 7.206 to 7.794</span>
To solve the problem, simply plug in the value for x in both functions, as shown below:
--> 
---> 
--> 
---> 
----> 
, so the answer is 34.
The answer is C. 120
The solution can be derived by the formula 6P3.
6P3 = 6 * 5 * 4 = 120
120 different combinations can be made with the condition.
<span>Thank you for posting your question. I hope you found what you were after. Please feel free to ask me more.</span>
-3+2x = -6 (negative and negative changes to positive (+))
2x = -6+3
2x = -3
x = -3/2
