Answer: it is 12 hours
Step-by-step explanation: hope it helps
 
        
                    
             
        
        
        
90 km/ h x 1.5 h = 135 km
        
             
        
        
        
Answer: Choice A) AA postulate; 18
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Work Shown:
The triangles are similar to each other due to the AA (angle angle) postulate. The top angles are overlapping or shared angles. So that's the first pair. The second pair of angles is either bottom pair of angles, from the fact that corresponding angles are congruent. This is only true if the lines are parallel.
Due to the similar triangles, we can set up the proportion and solve for x
8/(8+4) = 12/x
8/12 = 12/x
8*x = 12*12 ... cross multiply
8x = 144
x = 144/8
x = 18
        
             
        
        
        
Answer:
6
Step-by-step explanation:
4(3)+(2)^2-(5)^2
12+4-10
16-10
6
 
        
             
        
        
        
Hello there! 
Median is the middle of the data set. 
So, first we have to arrange it into proper numerical order (least to greatest). 
2,6,10,12,15 
Then, we look for the middle number.
It is 10, therefore 10 would be the median of this data set.