If k is a positive integer, which of the following represents the average of `3^(k) and 3^(k+2)`?

f (x) = (x + 3)(x − k) T he function f is defined above. If k is a positive integer, which of the following could represent the graph of y = f (x) in the xy-plane?

If k is any positive integer, then (k^(2)+2k) is

If n is a positive integer and C_(k)=.^(n)C_(k) then find the value of sum_(k=1)^(n)k^(3)*((C_(k))/(C_(k-1)))^(2)

If n is a positive integer and C_(k)=""^(n)C_(k) , then the value of sum_(k=1)^(n)k^(3)((C_(k))/(C_(k-1)))^(2) is :

If n is a positive integer and C_(k)=""^(n)C_(k) , then the value of sum_(k=1)^(n)k^(3)((C_(k))/(C_(k-1)))^(2) is :

If n is a positive integer and C_(k)=""^(n)C_(k) , then the value of sum_(k=1)^(n)k^(3)((C_(k))/(C_(k-1)))^(2) equals:

The frequency distribution is given below. {:(x,k,2k,3k,4k,5k,6k),(f,2,1,1,1,1,1):} In the table, k is a positive integer, has a varience of 160. Determine the value of k.

The frequency distribution is given below. {:(x,k,2k,3k,4k,5k,6k),(f,2,1,1,1,1,1):} In the table, k is a positive integer, has a varience of 160. Determine the value of k.