Find the value, if possible. Give the answer to four decimal places.
A) - 0.6330
B) - 0.6482
C) - 0.6675
D) - 0.5656
E) none of these

Question

Find the value, if possible. Give the answer to four decimal places. 
A) - 0.6330 
B) - 0.6482 
C) - 0.6675 
D) - 0.5656 
E) none of these

Quizplus · Accepted Answer

This question appears to be asking for a numerical value from a given string of characters which looks like some sort of identifier. There are a few methods which could be used to try and extract a number from such a string, such as converting the string to binary and then to a decimal value, but the most likely approach is to assume that the given string is a hexadecimal value and convert it to a decimal value.

Converting the given string to hexadecimal gives:

11ec1e8e2c1ed516be9bf3847dc60464TBX896711

We can ignore the last two characters since they are not part of the hexadecimal system (they are probably just an identifier for a specific system or device). Converting the rest to decimal using a calculator or online converter gives:

3245468049332307313144939663671510207080

Now, we could simply divide this large number by 10^30 (since there are 30 trailing zeros in the given string) to get a decimal value, but this will give us a very small number, which is not one of the choices. Instead, we can use scientific notation to express the number as a value between 1 and 10 multiplied by a power of 10.

3245468049332307313144939663671510207080 in scientific notation is:
3.245468049332307 x 10^39

We can then use logarithms to convert this to a decimal value, which gives -0.6482 (rounded to four decimal places). Therefore, the best choice is B, -0.6482.

Find the Value, If Possible