Write in scientific notation. simplify. 4( 2 * 10^-3)

Question

Write in scientific notation. simplify.  4( 2 * 10^-3)

australopithecus · Answer

8*10^-3

australopithecus · Answer

$$(\frac{2}{10^3})4 = \frac{(2*4)}{10^3} = \frac{8}{10^3} = 8*10^{-3}$$

anonymous · Answer

Scientific notation looks like this:
$$\large \textrm{a} \cdot 10^\textrm{b}$$Where $a$ is any number, like $-13.4, \pi, \sqrt{5.4}$.

$b$ is an integer, like $-2, -1, 0, 1, 2, 2432, 9325801, \textrm{etc}$.


So, we have the
$$\large 10^{-3}$$ already. What is there left for us to do, then?

anonymous · Answer

thanksss :)

anonymous · Answer

Sorry, I just realized I was sort of wrong.

$a$ must be a number like

$0.1, \ 1.234, \ -9.234$

but it CAN NOT be

$12.3, \  \pi, \ \sqrt{5.4}$

Excuse me for the fail. :)

anonymous · Answer

Basically, $a$ must begin with only one single digit followed by a decimal point followed by any other numbers.

anonymous · Answer

Is all gewd! appreciate the explaining  :))