D.34 more weeks left of saving because you have $166 more dollars to go after your $50 dollar scholarship program and the 16 weeks of saving $84 dollars.
Answer: what anime is this so i can answer
Step-by-step explanation:
3 to the power of 4:
=34
x
n
=
3
4
=3⋅3⋅3⋅3
=
3
⋅
3
⋅
3
⋅
3
=81
=
81
For example, 3 to the power of -4:
=3−4
x
n
=
3
−
4
=134
=
1
3
4
=13⋅3⋅3⋅3
=
1
3
⋅
3
⋅
3
⋅
3
=181
=
1
81
=0.012346
When
, we have


and of course 3 | 6. ("3 divides 6", in case the notation is unfamiliar.)
Suppose this is true for
, that

Now for
, we have

so we know the left side is at least divisible by
by our assumption.
It remains to show that

which is easily done with Fermat's little theorem. It says

where
is prime and
is any integer. Then for any positive integer
,

Furthermore,

which goes all the way down to

So, we find that

QED
In triangle ABC and DEF
AC =DF, [ given ]
AB =DE, [ given ]
angle A = angle D
by SAS
ABC congruent to triangle DFE
so
BC = EF, [ CPCTC]
hence proved