Ireally need with these two questions. i wrote what i think they are, but i'm not sure. me double check them. you!

1. The first polynomial listed is just the number 9.

We can identify two key things here:

There is one term, so it's a monomial.

There are no factor's, so it has a degree of 0, or is constant.

Your answer is correct.

2. In the next polynomial, we can identify the same things:

There are three terms, so it's a trinomial.

The degree of the polynomial is determined by observing the higher power in a given term, in this case, it's three.

The prefix for relating to a multiple of three is cubic, we so know that this is a cubic trinomial.

Your answer is correct again, well done!

25/4

step-by-step explanation:

call segment cd's length x. because dc and ab are parallel, angle acd and cab, so triangles adc and abc are similar and we can set up the equation x / ac = ac / ab, or x / 5 = 5 / 4 and x = 25/4.

answer: it is d

step-by-step explanation: