Why aren’t the following polynomials? y=x^2 +2^x y^2=(x-2)^2-1 y=1/x^2+1/x+1/2

Polynomials can have constants (3, -9), variables (x, y), and exponents (). One thing you can't have is a variable in the denominator. For example:

Or fractional exponents.

Step-by-step explanation:

a)  

Is not a polynomial because does not have the standard form, where variable is the base. e.g.

b)  

Is not a polynomial because has fractional exponents

c)  

Is not a polynomial because our variable x is in the denominator

i belive those are the ones that are under 90 degreese.

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.