Answer:5.4×105+2.3×104.
Step-by-step explanation:
Exponential laws
x^-m=1/(x^m)
and (x^m)(x^n)=x^(m+n)
so
(3^-4)(3^2)=
3^(-4+2)=
3^-2=
1/(3^2)=
1/9
the answer is A
Answer:
(D) 
Step-by-step explanation:

Answer:
aw dawd awdaw adawd awd a
Step-by-step explanation:aw dawd awd a
wd awd awd a awa da a
d ad a
d aw
d aw
daw
d
awd
ad
ad adawd awd awdd
Perimeter is 2L x 2W or L + L + W + W
A) 12(2) + 24(2) = 72
B) 18(2) + 36(2) = 108
C) 27(2) + 54(2) = 162
D) 36(2) + 36(2) = 144 (and one side is not even twice the length of the other)
Answer: B