Answer:
a) Hence the probability that the average test score in the class of size 25 exceeds 80.
P ( X > 74) = 0.9838
P ( Z > 2.14) = 0.0162
b)  Hence the probability that the average test score for the class of size 64
P ( X > 74) = 0.9838
P ( Z > 2.14) = 0.0003
c) Probability of the difference exceeding 2.2 = 0.9936
P (Z < 2.49) = 0.0064
Step-by-step explanation:
Let's assume a normal distribution.
Now,
a) For a class of 25


b)
Similarly:
For the class of 64


c) Probability of the difference exceeding 2.2


P (Z < 2.49)
= 1 - 0.9936
= 0.0064
 
        
             
        
        
        
Answer:
D.
πr2(2h)pi r squared left parenthesis 2 h right parenthesis
Step-by-step explanation:
 
        
             
        
        
        
Answer:

Step-by-step explanation:
If you are asking to convert from Vertex Form to Standard Form, here is how you do this:

I am joyous to assist you anytime.
 
        
             
        
        
        
The answer is C: The size of the fish Joe can catch is a function of the strength of his fishing line.
        
             
        
        
        
Answer:
its the first one
Step-by-step explanation:
because you just leave the t alone and bring down the 5 and you get t=5g then since you have to pay 20 your taking away money and using it to pay that bill and therefor it makes it minus and your equation will be t=5g-20 hope this helps :)