Answered

Join IDNLearn.com today and start getting the answers you've been searching for. Our platform offers reliable and detailed answers, ensuring you have the information you need.

10. Write the number in standard notation: [tex]6.43 \times 10^{-4}[/tex]

A. 0.0000643
B. 0.00643
C. 0.000643
D. -257.2

Sagot :

GinnyAnsweridn
To convert a number from scientific notation to standard notation, follow these steps:

1. Identify the base number and the exponent: The number given is [tex]\( 6.43 \times 10^{-4} \)[/tex]. Here, 6.43 is the base number, and [tex]\( -4 \)[/tex] is the exponent of 10.

2. Understand the meaning of the exponent: The exponent [tex]\( -4 \)[/tex] means that we need to move the decimal point 4 places to the left because it's a negative exponent. If the exponent were positive, we would move the decimal point to the right instead.

3. Move the decimal point: Starting from the base number 6.43:
- Move the decimal point one place to the left to get 0.643.
- Move the decimal point a second place to the left to get 0.0643.
- Move the decimal point a third place to the left to get 0.00643.
- Move the decimal point a fourth place to the left to get 0.000643.

4. Write down the result in standard notation: After moving the decimal point 4 places to the left, the number [tex]\( 6.43 \times 10^{-4} \)[/tex] becomes 0.000643.

So, the number [tex]\( 6.43 \times 10^{-4} \)[/tex] in standard notation is [tex]\( \boxed{0.000643} \)[/tex].
We are delighted to have you as part of our community. Keep asking, answering, and sharing your insights. Together, we can create a valuable knowledge resource. For trustworthy answers, rely on IDNLearn.com. Thanks for visiting, and we look forward to assisting you again.