Answer:
13800
Step-by-step explanation:
The order of the members is important (because each selected member will receive a different position), thus we then need to use the definition of permutation.
There are 25 members, of which 3 are selected.

Evaluate the definition of a combination:

 
        
             
        
        
        
Answer:
g(1) = 1.8696
g(2) = 1.8662
Step-by-step explanation:
Simply plug in the x values into the equation in a calc and you should get your answer.
 
        
             
        
        
        
Hey there
Lets solve this question together, 
Convert 76.8% to a decimal.
0.768 * x=40.32 
Multiply 0.768 by x to get 0.768x. 
0.768x=40.32 
Multiply each term by 1 / 0.768 and simplify.
Cancel the common factor of 0.768.
x=40.32 / 0.768 
Divide 40.32 by 0.768 to get 52.5 
x=52.5
        
             
        
        
        
1 + sec^2(x)sin^2(x) = sec^2(x)
This becomes
1+tan^2(x) = sec^2(x) which is an identity
You could 
1 + sin^2(x)/cos^2(x) = sec^2(x)
then
cos^2(x) + sin^2(x) = cos^2(x)sec^2(x)
1 = 1