Answer: 3 hours
Step-by-step explanation:
the answer this can be solved by the function:
324 = 27x + 243
-243          -243
27x = 81
/27     /27
x = 3 hours past 7.
 
        
             
        
        
        
Answer:
Yes, the boats are safe to ride. 
Step-by-step explanation:
40 (4) + 12 (2) ≤ 500 
160 + 24 ≤ 500
184  ≤ 500
184 is less than 500. 
because I was not sure if you had 9 adults instead of 2, this is the answer: 
40 (4) + 12 (9) ≤ 500 
160 + 108 ≤ 500 
268 ≤ 500 
268 is less than 500 
 
        
                    
             
        
        
        
Answer:
There is no significant difference between the two averages at 5% level
Step-by-step explanation:
Given that a a college student is interested in testing whether business majors or liberal arts majors are better at trivia. 
The student gives a trivia quiz to a random sample of 30 business school majors and finds the sample’s average test score is 86. He gives the same quiz to 30 randomly selected liberal arts majors and finds the sample’s average quiz score is 89
Thus he has done a hypothesis testing for comparison of two means of different subjects.  n =30

Since which is better is not claimed we use two tailed test here
We find that p value  our alpha
 our alpha
Since p >alpha, we find that there is no significant difference between the averages of these two groups and null hypothesis is accepted
 
        
             
        
        
        
Answer:
Equation 1: No solution
Equation 2: Infinity
Equation 3: One solution
Equation 4: Infinity
Equation 5: No solution
Hope this helps you. Do mark my answer as brainly. Thanks
 
        
             
        
        
        
Answer:
I think A
Step-by-step explanation: