Answer:
He used 5 47 cent stamps and 8 7 cent stamps
subtract 0.47 from 2.91 until you get 0.56 then you begin to subtract 0.07 to get 0.
Answer:
see explanation
Step-by-step explanation:
∠ 1 = ∠ 4 ( corresponding angles ), then
∠ 1 = 102°
∠ 2 = ∠ 3 ( corresponding angles ), then
∠ 2 = 78°
It is a decrease because it went down in cost.
To find percent:
Find difference from original amount to present amount.
So we do 4.11-2.92
=1.19
Now find the percent:
1.19/4.11 is about 28%
28% change.
Someone plz double check this answer.
(1)
we know that
potential will be added when cells are connected in series
so, the polarity must be same
positive of one cell must be connected to negative of another cell
we can see only one option
option-(i)......Answer
(2)
(A)
we know that

so, smaller value of I means larger value of R
so,

option-3.....Answer
(B)
we know that
maximum resistances can be obtained when resistors are connected in series
so,



so, option-4........Answer
(C)
we know that series combination
we add resistances
so, we will get largest value of equivalent resistance
so, option-2..........Answer