Answer:
   AE = 15 cm; ED = 18 cm; AD = 15 cm (given)
Step-by-step explanation:
ΔBEC ~ ΔAED so ...
    AD/BC = AE/BE = (BE+AB)/BE = 1 + AB/BE
Substituting given numbers (lengths in centimeters), we have ...
   15/10 = 1 + 5/BE
   1/2 = 5/BE
   BE = 10
Similarly, ...
   1/2 = 6/CE
   CE = 12
Then the unknown sides are ...
   AE = AB + BE = 5 + 10 = 15 . . . cm
   ED = CE + CD = 12 + 6 = 18 . . . cm
 
        
             
        
        
        
Using the rules of cosines, the <span>measure of the turn between the second and third legs of the race</span> is given by
 
 
        
        
        
Answer:
3x + 2y = 23
Step-by-step explanation:
mangoe = x
apple = y
6x + 4y = 46
<em>divide </em><em>them </em><em>by </em><em>2</em>
3x + 2y = 23
 
        
             
        
        
        
Answer:
The objective of the confidence interval is to give a range in which the real mean of the population is placed, with a degree of confidence given by the level of significance.
The conclusion we can make is that there is 95% of probability that the mean of the population (professor's average salary) is within $99,881 and $171,172.
Step-by-step explanation:
This is a case in which, from a sample os size n=16, a confidence interval is constructed.
The objective of the confidence interval is to give a range in which the real mean of the population is placed, with a degree of confidence given by the level of significance. In this case, the probability that the real mean is within the interval is 95%.