-5.4 - (2.1 + 1.8)=-9.3
So I would say A. Thanks for asking your question today and have a good day on Brainly.com! :)
        
             
        
        
        
Answer:
f(x)  = x² - 6x + 14
Step-by-step explanation:
Standard form is ax² + bx + c = 0 or f(x) = ax² + bx + c 
So we are going to expand the equation and combine like terms: 
f(x) = (x - 3)² + 5
f(x) = x² - 3x - 3x + 9 + 5
f(x) = x² - 6x + 9 + 5
f(x) = x² - 6x + 14
 
        
             
        
        
        
Answer:
x = 8
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
 =
 = 
Note that ΔBCD is a 3- 4- 5 triangle ( Pythagorean triple), hence CD = 4
Substitute given values into the equation
 =
 =  ( cross- multiply )
 ( cross- multiply )
3x = 24 ( divide both sides by 3 )
x = 8
 
        
             
        
        
        
<span>The parallel lines extend infinitely in both directions, and the line segment has two endpoints.
</span>
        
                    
             
        
        
        
Ok so the dependent variable would be $1.45 for each addition hour. The cost depends on every hour so u can't really calculate it unless u have the hours.
$3 is independent since it's only charged on the first hour. It doesn't rely on any other information.