Answer:
what is the question exactly??
Step-by-step explanation:
Each of A, C, and D are rational, so presumably B is the answer here.
A is rational, since

, so

.
C is also rational. If

, then

. This would mean

, and so

.
D is rational by a similar argument. If

, then

. So,

, which means

.
Answer:
A.
Step-by-step explanation:
Have a nice day/night :)
The standard form:

We have:
<em>multiply both sides by 2</em>
<em>add x to both sides</em>

Answer:
y = 32
Step-by-step explanation:
sqrt(2y) +3 = 11
Subtract 3 from each side
sqrt(2y) +3-3 = 11-3
sqrt(2y) = 8
Square each side
(sqrt(2y))^2 = 8^2
2y = 64
Divide by 2
2y/2 = 64/2
y = 32