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Mathematics 20 Online
OpenStudy (anonymous):

In general, when a number written in scientific notation includes a positive exponent, the absolute value of that number is __________. A. less than 0 B. between 0 and 1 C. equal to 1 D. greater than 1

OpenStudy (anonymous):

in general .. so 100 = 1e2 ... also 142 = 1.42e2 ... what do you think :)

OpenStudy (anonymous):

i dont know @RONNCC

OpenStudy (anonymous):

positive exponent means some power of 10 * a positive number. .... what is the smallest that a positive number can be?

OpenStudy (anonymous):

1 @RONNCC

OpenStudy (anonymous):

.... is .00000000000000000000000000000000000000000001 a positive number?

OpenStudy (anonymous):

no @RONNCC

OpenStudy (anonymous):

... why not?

OpenStudy (anonymous):

.00000000000000001 > 0

OpenStudy (anonymous):

i dont know y? @RONNCC

OpenStudy (anonymous):

... http://simple.wikipedia.org/wiki/Positive_number

OpenStudy (anonymous):

any number > 0 is positive by definition

OpenStudy (anonymous):

oh i got it @RONNCC

OpenStudy (anonymous):

i dont know @SmokeysTheName

OpenStudy (anonymous):

B . @SmokeysTheName

OpenStudy (anonymous):

@SmokeysTheName no that is wrong

OpenStudy (anonymous):

you only write things in scientific notation if they are >=10 or <= 1.

OpenStudy (anonymous):

do the problem for 5. what is the answer?

OpenStudy (anonymous):

omg

OpenStudy (anonymous):

aka give me the thing for 5.

OpenStudy (mathstudent55):

A number written in scientific notation has two parts: 1. a number at least 1 but less than 10 2. 10 raised to an integer power According to the problem, the smallest number in scientific notation this problem considers is 1 x 10^1 or -1 x 10^1, but you have to take its absolute value, so the smallest number is 1 x 10^1. Notice this is the smallest number you can have according to the problem. 1 x 10^1 = 10 Now compare 10 with the choices and decide.

OpenStudy (anonymous):

@Tekoa smh the answer is D

OpenStudy (anonymous):

@mathstudent55 explain it to @SmokeysTheName i'm going to go help other people

OpenStudy (anonymous):

hmmm . okay

OpenStudy (mathstudent55):

Correct, the answer is D

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