Since L1//L2 , angle 1 = angle 5 
 
        
        
        
Answer:
1.584
Step-by-step explanation:
1.584 = 3.96 × 0.4
 
        
                    
             
        
        
        
Answer:
35
Step-by-step explanation:
4x4+4(5-2)+7
=4x4+4(3)+7
=16+12+7
=28+7
=35
 
        
             
        
        
        
Answer: 49.85%
Step-by-step explanation:
Given : The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped ( normal distribution ) and has a mean of 61 and a standard deviation of 9. 
i.e.   and
 and 
To find :  The approximate percentage of lightbulb replacement requests numbering between 34 and 61.
i.e. The approximate percentage of lightbulb replacement requests numbering between 34 and  .
.
i.e. i.e. The approximate percentage of lightbulb replacement requests numbering between  and
 and  . (1)
. (1)
According to the 68-95-99.7 rule, about 99.7% of the population lies within 3 standard deviations from the mean.
i.e. about 49.85% of the population lies below 3 standard deviations from mean and 49.85% of the population lies above 3 standard deviations from mean.
i.e.,The approximate percentage of lightbulb replacement requests numbering between  and
 and  = 49.85%
 = 49.85%
⇒ The approximate percentage of lightbulb replacement requests numbering between 34 and 61.= 49.85%
 
 
        
             
        
        
        
Answer: Alberto caught up to Omar after 6 seconds, when Alberto had to run 54 meters.
Step-by-step explanation: