Answer:
Step-by-step explanation:
81
=
3
4
and
27
=
3
3
, so this equation can also be written as
3
4
x
=
3
3
(
x
+
2
)
=
3
3
x
+
6
.
Since the bases are now the same, we can equate exponents to get
4
x
=
3
x
+
6
so that
x
=
6
(technically this equating of exponents requires the fact that exponential functions (with base not equal to 1) are one-to-one functions).
(do u understand?)
Answer:
Step-by-step explanation:
Answer:
3^-1 > 1/4
Step-by-step explanation:
3^-1 = 1/3
1/4 = 1/4
1/3 = 0.3333
1/4 = 0.25
0.3333>0.25
3^-1 > 1/4
Answer:
20
Step-by-step explanation:
25*4 equals 100 so 80/4 is 20.
