1. 2 2/3
2. 4.2
Explanation:
1. 8/9*3=24/9=8/3=2 2/3
2. 9/5*7/3     9*7=63     5*3=15      so 63/15=21/5=4 1/5=4.2
 
        
             
        
        
        
Answer:
15.86%
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean  and standard deviation
 and standard deviation  , the zscore of a measure X is given by:
, the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Percent of area between the mean and 0.20 standard deviations from the mean:
pvalue of Z = 0.2 subtracted by the pvalue of Z = -0.2
Z = 0.2 has a pvalue of 0.5793
Z = -0.2 has a pvalue of 0.4207
0.5793 - 0.4207 = 0.1586
So this percentage is 15.86%
 
        
             
        
        
        
Answer:
7.66
Step-by-step explanation:
Just open the parenthesis.
4x-4+4x+4x-4=84
Now simplify and solve
12x-8=84
12x=92
x= 7.66
 
        
             
        
        
        
The correct answer Is D. Purple , Green , Yellow 
Hope I helped! ( Smiles )
        
             
        
        
        
Answer:
(4;0)
Step-by-step explanation:
y=0
2x-3×0=8
2x=8
x=4