Answer:
Because the product is always non-termination,non-repeating decimal.
Step-by-step explanation:
If we have
is irrational;
is rational such that
, then
is irrational.
A way to represent this is:

Note that we have a contradiction, because
is not a rational number, as I stated in the beginning. Therefore, ab is irrational.
Answer:
A
Step-by-step explanation:
The first step to solving this is to write the number in exponential form
2

=

since the bases are the same,, set the exponents equal to one another
-IxI = 7
now change the signs on both sides of the equations
IxI = -7
this equation is false for any value of x because the absolute value function needs to always be positive or 0,, which is not the case for this expression
x ∈ ∅
this means that the answer to your question is x ∈ ∅
let me know if you have any further questions
:)
Answer:
12,000
Step-by-step explanation:
The two thousands that 11,900 is in between are 11,000 and 12,000 which are our two options to choose from. 11,900 is only 100 away from 12,000 and 900 away from 11,000. Because the distance between 11,900 and 12,000 is shorter than the distance between 11,900 and 11,000, this means that 12,000 would be our answer since it is closer.
(I'm really sorry if this is confusing, I'm not good with words)