Answer:
the index of 2 is -1
Step-by-step explanation:

=
=
Answer:
option C : 2
Step-by-step explanation:
because there can be one triangle from BA till 20cm . and other till D
hope it helps you
Answer:
see explanation
Step-by-step explanation:
Part 1
The n th term of a geometric sequence is
= a
where a is the first term and r the common ratio
Given
= 128, then
a
= 128, that is
32a = 128 ( divide both sides by 32 )
a = 4 ← first term
Part 2
= 4
= 4 × 1048576 = 4194304
The answer is B
Let me know if you need an explanation