Question

Which measurement of length is the smallest? A. 9*10^-6 m B. 7*10^-5 m C. 7 * 10^1 D. 9*10^2

Answer 1

what do u think?

Answer 2

I have no idea.

Answer 3

okay which grade are you in? and are you allowed to use calculator?

Answer 4

Yes. And 11th.

Answer 5

okay then write the numbers in calculator and u'll see which one is the smallest

Answer 6

since all the measurements are in powers of 10, just find the one with the smallest exponent

Answer 7

A. 9*10^-6 m = means has 6 zeros before 9 meaning 0.000009 m
B. 7*10^-5 m = means has 5 zeros before 6 = 0.00007 m
C. 7 * 10^1 m = here it means 1 zero after 7 = 70 m
D. 9*10^2 m = and here its 2 zeros after 9 = 900 m

Answer 8

i hope u get it?

Answer 9

So would it be C?

Answer 10

why do u think its C?

Answer 11

take a look at ones that have decimal places, don't you think they are smaller?

Answer 12

they are not even close to 1 right?

Answer 13

Can you maybe help me with this question next? Scientists use scientific notation to represent very small or very large numbers because this notation increases the

accuracy of measured quantities.
convenience in using the numbers.
number of significant figures.
precision of measurements.

Answer 14

maybe convenience in using the numbers.? @JFraser ?

Answer 15

if you had to write 6.022*10^23 in "regular" notation, wouldn't that be terribly \(inconvenient\)?

Answer 16

Ok thank you you!

Answer 17

my calculator is messing up. I also need help with this. David writes the four numbers 6.91 10–6, –7.419 106, –9.71 10–5, and 6.42 106 on the board. In which option are these numbers ordered from least to greatest?

Answer 18

can u write those numbers better?

Answer 19

David writes the four numbers 1. 6.9*10^–6, 2. –7.419 * 10^6, 3. –9.71 8 10^ –5, and 4. 6.42 8 10^6 on the board. In which option are these numbers ordered from least to greatest?