Answer:
Step-by-step explanation:
we have
-----> equation A
-----> 
-----> equation B
Substitute equation B in equation A
solve for Y
F(2y + 1) is 2
+
for this question
Answer:
It's irrational
Step-by-step explanation:
the square root of 27 is equal to:
We know that 
is an irrational number (but a real number), so 
is the same.
In case we need to prove that is irrational, please leave a comment.
Answer:1/2 y
Step-by-step explanation:
We can solve this using ration reasoning:
x
2
x
1
=
y
2
y
1
Explanation:
If
x
varies directly with
y
(written
x
∝
y
), then doubling
y
means doubling
x
, so the rations of final values and initial values will be the same:
x
2
x
1
=
y
2
y
1
In this case,
x
2
9
=
24
18
x
2
=
9
⋅
24
18
=
12
Or, intuitively, if
x
∝
y
and
x
=
9
when
y
=
18
, we can conclude that
x
=
1
2
y
and
1
2
of 24 is 12.
