Which of the following are not polynomials ?

A, B,  C, and E are not polynomials.

A polynomial is an expression involving exponents, constants, and variables, so long as:

You are not dividing by a variable.

You are not raising a variable to a power of a negative number.

You are not raising a variable to a power of a fraction.

You are not taking the root of a variable.

Only one of these satisfies the criteria for a polynomial, and that is D. However, the 2nd term, 0x^2 is an unnecessary term, and would only be included if dividing this polynomial by another polynomial.

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.