The reason why the results from the online calculator not correct he did not put the inputs into the calculator, even though it says that he inputs the information, what he did not input was the inputs.
We are given
sequence is 2 , 4 , 8 ,16 , 32 , .....
Firstly , we will check whether it is geometric sequence
Checking geometric sequence:
We will find common ratio between successive terms
and then we check whether they are equal
r1=(second term)/(first term)

r2=(third term)/(second term)

r3=(fourth term)/(third term)

r4=(fifth term)/(fourth term)

we can see that all four ratios are same

so, this is geometric sequence
Calculation of general term:
We got
common ratio is

Let's assume
number of terms is n
first term is 2

now, we can use formula

we can plug values
and we get



..................Answer
Answer:
7.2*10^3.
7,200 in scientific notation, is 7.2*10^3
The answer is (-1,0) or x=-1 and y=0 :)