Answer:
Step-by-step explanation:
Use the midpoint formula: 
So, the Change In X is 2-8 = -6
And the Change in Y is 7-4 = 3
Once you divide both of the changes by 2, you get
X: -3
Y: 
So the midpoint is: 
Answer:
39/50 and 0.78
Step-by-step explanation:
78% = 78/100 (or 78 hundredths) = 0.78
39 ÷ 50 = 0.78
Answer:
The Quadratic Formula is derived from the process of completing the square
Step-by-step explanation:
Answer: ![\dfrac{1}{3}[\ln (x+1)+\ln(x-1)]](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B3%7D%5B%5Cln%20%28x%2B1%29%2B%5Cln%28x-1%29%5D)
Step-by-step explanation:
Properties of logarithm :



The given expression in terms of Natural log : 
This will become
[ By using Property (3)]

[
]
[ By using Property (1)]
Hence, the simplified expression becomes
.