Answer:
1 standard deviation 
Step-by-step explanation:
Given that :
IQs as measured by the Wechsler Adult Intelligence Scale are approximately Normal with:
Mean = 100
Standard deviation = 15
About 84% of people will have IQs below 115 because:
84% = 0.84
From z - table, 0.84 corresponds to a z- score of about 0.995
0.995 = 1. 00
The z-score gives the number of standard deviations by which a raw score is above or below the average or mean value. 
Raw score = 115
Mean = 100
Standard deviation (sd) = 15
Mean + number of sd's
100 + 1(sd) 
100 + 1(15) = 100 + 15 = 115
 
        
             
        
        
        
Answer:
Step-by-step explanation:
(d + 5) + (d + 5) + (d + 5).....combine like terms
3d + 15 <===
 
        
             
        
        
        
Here you go I hope I helped
 
        
        
        
Answer:
the initial value -- f(0) -- results in a value of 1.5
Step-by-step explanation:
f(0) =  ·
 ·  (any value raised to the power of zero equals one)
     (any value raised to the power of zero equals one)
f(0) =  · 1
 · 1
f(0) = 3/2 or 1.5