State whether each expression is a polynomial. If the expression is a polynomial, identify it as monomial,a binomial, or a trinomial.

1.1/5y^3+y^2-9
2.6g^2h^3k
Are these the right answers? Thanks
1.No
2.Yes, monomials.

Both answers are wrong. 1. IS a polynomial and 2. is not.

To determine whether an expression is a polynomial, we need to check if it meets the definition of a polynomial. A polynomial is an algebraic expression that consists of variables and coefficients, combined using addition, subtraction, and multiplication operations. The variables in a polynomial expression have non-negative integer exponents.

1. The expression 1/5y^3 + y^2 - 9 is a polynomial because it consists of variables (y) and coefficients (1/5, 1, -9), combined using addition and subtraction operations. However, we need to identify it as a monomial, binomial, or trinomial based on the number of terms it has. This expression has three terms, so it is classified as a trinomial.

2. The expression 6g^2h^3k is also a polynomial because it consists of variables (g, h, k) and coefficients (6), combined using multiplication operation. It has only one term, so it is classified as a monomial.

Therefore, your answer for the first expression is incorrect as it is a trinomial, not a non-polynomial expression. However, your answer for the second expression is correct as it is a monomial.