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:
532
Step-by-step explanation:
532 = 2·2·7·19
__
There are 24 possible 3-digit numbers from the set {2, 3, 5, 7}. Of those, 6 have four factors: 372, 375, 532, 572, 732, 735.
The sums of factors of these numbers are ...
38, 18, 30, 28, 68, 22
The number of interest is 532.
Answer:
76°
Step-by-step explanation:
by definition, supplementary angles sum up to 180°
hence,
104° + supplementary angle = 180°
supplementary angle = 180° - 104°= 76°
