Question

CAN YOU HELP ME!

Which expression is undefined?

A. 0 divided 3

B. 15/9+(-9)

C. (7-7)/9

D. (0-8)/-4

Answer 1

B. 15/9+(-9)

Explanation:

Answer 2

B) 15/(9+(-9))

Explanation:

Be careful of the parentheses because if you just write out 15/9+(-9),

it's technically, saying that 15/9+(-9)=5/3+(-9)=5/3-9, and that's different from what you want to express, mathematically.