Prime number is only divisible by 1 and itself. ... No other whole numbers can multiply together to make 11. 15 is not a prime number because the factors of 15 are 1, 3, 5 and15 ( ). 15 has more than 2 factors, so it is not a prime number. true or false

15 is not a prime number - True

This is because 15 has other factors than 1 and 15, 3 and 5. Because it has other factors, it is not a prime number. An example of a prime number would be 7, 5, or 11, which are prime numbers because their only factor is 1 and itself.

Hope this helps!! :)

i think it is c, not positive though

step-by-step explanation:

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'.