3. 90 degrees
5&6 is 60 dgrees
Answer:
The probability is 
Step-by-step explanation:
From the question we are given that
The population mean is 
The standard deviation is 
The random number 
The sample size is 
The probability that the sample mean would be greater than 
Generally the z- score of this normal distribution is mathematically represented as

Now

substituting values


Which implies that


Now from the z-table the probability is found to be

Answer:
son age: X
man_age= 5X
in 3 years: we have: (man_age+3)(X+3)=380
we can replace the man age by 5X and we get :
(5X+3)(X+3)=380
it is a quadratic equation with 2 solutions. One negative and 7
The solution is thus 7, since age can not be negative.
The son is thus 7 and the dad 5 times more 35
Step-by-step explanation:
Answer: if your tryin to divide your answer is 0.0481927711
Hope This Helps :)