Answer:
The correct answer is 0.541, however it isn't a choice you provided, hope that is still able to help you in some way!
 
        
                    
             
        
        
        
Answer:
-2 C is cooler cause - in the C makes it cooler (sorry if im bad this is my 1st time)
Step-by-step explanation:
 
        
                    
             
        
        
        
A)2.8
b1) 4.5/2.8
b2)impossible because if you want to do trigonometry you can't have that is an angle (Which is 148.1) larger than 90 degrees. 
but if its angle BAF then the angle would be 2.8/5.3
c)41.32
        
             
        
        
        
(k - 1)(k - 4)
Use FOIL to solve this.
First
k * k
Outer
k * -4
Inner
-1 * k
Last
-1 * -4
k^2 - 4k - 1k + 4
k^2 - 5k + 4 is the trinomial.
        
             
        
        
        
Answer:
Angle 1=66
Step-by-step explanation:
Step 1, solve for angle 2
<2+123=180 degrees
Angle 2=57 degrees
Step 2, solve for angle 1
Since this is an isosceles triangle, to solve for angle 1, the equation is 2(57)+x=180
Angle 1=66 degrees