Identify whether or not the expression is a polynomial by writing yes or no then explain each 1.X^2+1 2.x^1/2+1 3. X/3 4. 3/x

the least common denominatore of 7 and 2 is 9

step-by-step explanation:

7+2=9

8 2/3 is the answer

step-by-step explanation: just use a calculator

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

the function makes a strait line horizontally with no x intercept but a y intercept at 9.