Which expression is not a polynomial? a. 3x + 5 b. 2/5x - 21 c. 5 d. x^-3 + 5x

C. 5

Step-by-step explanation:

"Polynomial" means consisting of several terms, or more than one term.

In A, we see that there are 2 terms (3x and 5), and so it is a polynomial, specifically a binomial.

In B, we also see 2 terms (2/5x and -21), and so it is also a polynomial, specifically a binomial.

In C, we only see one term (5), and so it is a monomial, or having only one term.

In D, we can see 2 terms (x^-3 and 5x), and so it is also a polynomial, specifically a binomial.

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for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.

answer: he is 272195

step-by-step explanation: all you have to do is multiple 3535 and 77 and it equals 272195