Pre-calc Fill in the blank to complete the following sentence.
If a polynomial has one root in the form a- b, it has a second root in the
form of a-√b.
a__ √b

What are the values of each variable in the diagram below?

Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !

If f(x)=x+7 and g(x)=1/x what is (fog)(x)