Answer:
 you want to simplify the fractions to decimals so its easier to put in order
Step-by-step explanation:
 
        
             
        
        
        
Answer:
a7 = 36
Step-by-step explanation:
Here, we are to use the recursive formula to calculate the 7th term( we add the preceding term to 4 so as to get the succeeding term)
a1 = 12
using the recursive formula given in the question 
a2 = 12 + 4 = 16
a3 = 16 + 4 = 20
a4 = 20 + 4 = 24
a5 = 24 + 4 = 28
a6 = 28 + 4 = 32
a7 = 32 + 4 = 36
 
        
             
        
        
        
Answer:
Step-by-step explanation:
given that on a six-question multiple-choice test there are five possible answers for each question, of which one is correct and four are incorrect
By mere guessing probability for choosing correct answer = p = 0.2
also each question is independent of the other 
Hence if X is the number of correct questions then
X is binomial with p = 0.2 and n = 6
a) being correct on three questions, 
=
(b) being correct on four questions, 
= 
(c) being correct on all six questions
=
 
        
             
        
        
        
Answer:
C
Step-by-step explanation: