Just use derivatives:
f'(x)= .48x-.96 = 0, x = 2, since the coeff of x^2 is +, this is a minimum
x=0 1989, so x = 2 is 1991! :)
The letter E would represent 9.
I hope this helped you!
Answer:
idk
Step-by-step explanation:
I had the same problem and it makes noooo sense NEED HELP ASAP
The answer to your problem is -2.1.
Observe the given figure.
Given: 
To prove: 
Statement
1. 
Reason: Given
2. 
Reason: Substitution
3.
are alternate interior angles.
Reason: Definition of alternate interior angles
4. 
Reason: If alternate interior angles are equal, then the lines are parallel.