7/12
12/7
1`2/7
7/12
a reciprocal you just flip the fraction
3. you cannot simplify √30
Answer:
hope this will help you...
Step-by-step explanation:

Answer:
B
Step-by-step explanation:
recall that any radical expression
has real solutions only if A is not negative. (otherwise you will have imaginary solutions)
hence in this case we have
,
for real solutions, 8x must be ≥ 0,
since 8 is a positive number, x must be ≥ 0 (answer)