Right triangle 
1) 75.6cm
2)10.14ft
3)16ft
Entire triangle
1)162cm
2)30.94ft
3)20ft
        
             
        
        
        
Answer:
h = b - 11.50
Step-by-step explanation:
Sharron(h) has 11.50 less than Rita(b)
h = b - 11.50
 
        
             
        
        
        
Answer:
2.28% probability that a person selected at random will have an IQ of 110 or higher
Step-by-step explanation:
Problems of normally distributed samples are solved using 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.
In this problem, we have that:

What is the probability that a person selected at random will have an IQ of 110 or higher?
This is 1 subtracted by the pvalue of Z when X = 110. So



 has a pvalue of 0.0228
 has a pvalue of 0.0228
2.28% probability that a person selected at random will have an IQ of 110 or higher
 
        
             
        
        
        
Answer:
Step-by-step explanation:
with the largest measure
 
        
                    
             
        
        
        
Answer:
с. A matched pairs t-interval for a mean difference. 
Step-by-step explanation:
With the sample, we will have possession of the sample mean and of the sample standard deviation, which means that the t-distribution will be used.
We want to find the mean number of back problems for each sample, and estimate the difference. Since the groups are similar, with only the positions in which they work being different, we have matched pairs. So the correct answer is given by option c.