the number 0.000042 in scientific notation is
0.421 * 10^-4
2007-05-18 17:48:16 · 8 answers · asked by cougarhw 1 in Science & Mathematics ➔ Mathematics
False. The two numbers you wrote aren't even equal; one ends with a 1 but the other doesn't.
Scientific notation is N*10^n, where N is a number between 1 (inclusive) and 10 (exclusive), and n is an integer.
0.000042 in scientific notation is 4.2*10^-5.
2007-05-18 17:56:45 · answer #1 · answered by bictor717 3 · 0⤊ 0⤋
No. Numbers in scientific notation have the format integer(decimal) integers...[as justified] times power of 10.
2007-05-19 00:53:38 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋
nope
unless you have a TYPO?
0.000042 = 4.2 X 10^-5
(we always have one digit on the other side of the decimal for scientific notation)
.421 * 10^-4 = 0.0000421 (BUT NOT CORRECT NOTATION)
2007-05-19 00:53:06 · answer #3 · answered by Anonymous · 0⤊ 0⤋
false.
scientific notation is
x * 10^y
where 1=< x < 10
2007-05-19 00:54:57 · answer #4 · answered by chief_auto_parts1990 3 · 0⤊ 0⤋
True
You just need to count the number of digits between the decimal place and the 4.
EDIT: Hey, it's still technically correct, they just haven't used the conventional form of 4.21 X 10^-5
2007-05-19 00:52:26 · answer #5 · answered by James 3 · 0⤊ 3⤋
i am pretty sure that it is false. it actually is 4.2 x 10^-5 ( four decimal two times ten to the power of negitive five.)
2007-05-19 01:18:03 · answer #6 · answered by Mr. bonehead 1 · 0⤊ 0⤋
That is true
2007-05-19 00:57:17 · answer #7 · answered by sastro 5 2 · 1⤊ 1⤋
tralse
2007-05-19 00:55:35 · answer #8 · answered by tanner h 2 · 0⤊ 1⤋