Answer:
A.) $0.89
Step-by-step explanation:
2(4x+3y=7.43)
-3(5x+2y=7.03)
8x+6y=14.86
-15x-6y=-21.09
add the two equations
-7x=-6.23
divide by -7
x=.89
Notice that
so that for each power of 2, there is a pattern of period 4. This means that for integers
, each of
,
,
, and
have the same units digit.
We can write
, and since
, it follows that
and
share the same units digits. So the units digit of
is 8.
Usually when you add big numbers together, you get a result of exponents involved :) answer for your question : 1.212154551 e^22
They all have 4 sides, there are 2 shorter sides and 2 longer sides and the two short sides are parallel to each other, and the two long sides are parallel to each other.