Which expressions are polynomials? select each correct answer. 30y^2 30y^2+x 30y2x 30y2+x12

To know which of the following expressions are polynomials, let us look at the definition of a polynomial:

Polynomial is derived from poly- (which means "many") and -nomial (meaning "term"), so it says "many terms".

For an instance: is a polynomial, but is not a polynomial because it contains single term only.

We must keep in mind that in polynomial it can have variables, constants, and exponents but it can never have division by a variable.

Now lets, look at the

since it has got one term it can not be a polynomial.

: it has got more than one term therefore, it is a polynomial.

: again it has got just one term so it is not a polynomial.

: Since it has got more than one term, so again it is a polynomial.

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

answer: i believe the answer is e

step-by-step explanation: