Question

18 meters is equivalent to 18000 millimeters. express the millimeters in scientific notation

Answer 1

The scientific notation:

`a\cdot10^n,\ 1\leq a < 10\ and\ n\in\mathbb{Z}`

1 m = 1,000 mm

18 m = 18,000 mm

`1\underbrace{8000}_(\leftarrow4)=1.8000\cdot10^4=1.8\cdot10^4\\\\\boxed{18\ m=18000\ mm=1.8\cdot10^4\ mm}`

Answer 2

Here is your answer:

In order to find the answer you have to count how many zeros that are in the number.

• 
  `18000`
• 
  `0 = 3`
• 
  `1.8 * 10^4=`
• Check your work:
• 
  `1.8 * 10^4= 18000`

Therefore your answer is "1.8 × 10^4."

Hope this helps!