Answer:
The answers below ._.
Step-by-step explanation:
A secant is a line that intersects a circle in exactly two points. When a tangent and a secant, two secants, or two tangents intersect outside a circle then the measure of the angle formed is one-half the positive difference of the measures of the intercepted arcs.
 
        
                    
             
        
        
        
5(x+2), or 5x+10
This works because multiplication distributes over addition :)
        
             
        
        
        
Step-by-step explanation:
1) given 
2) 2 non - common sides in 1 ray
3) supplemental
5) opposite angles are congruent
 
        
                    
             
        
        
        
x = number of hours
want to find probability (P) x >= 13
x is N(14,1) transform to N(0,1) using z = (x - mean) / standard deviation so can look up probability using standard normal probability table.
P(x >= 13) = P( z > (13 - 14)/1) = P(z > -1) = 1 - P(z < -1) = 1 - 0.1587 = 0.8413
To convert that to percentage, multiply 100, to get 84.13%
 
        
             
        
        
        
__Award Brainliest if helped!Layman : The number of the largest power
Say  

 , Degree is 2 (X^2) 
and if 

 , the Degree is 3. 
Technical : Largest exponent of variable.