Write the number in scientific notation. -- .00029 * (not sure, please help!)
A- 29 x 10^6
B- 2.9 x 10^4
C- 2.9 x 10^-4
D- 29 x 10^-6
It should be C. -2.9 × 10^-4. (All you had to do was move the first real number until it is in a positive position, so hence C is the right choice)
Thank you!!!
To write the number in scientific notation, you can follow these steps:
1. Look at the given number, which is 0.00029.
2. First, we need to move the decimal point to get a number between 1 and 10. To do this, count the number of places you have to move the decimal point to the right until you have a number between 1 and 10.
In this case, you need to move the decimal point four places to the right, which gives you 2.9.
3. Next, write down this number, which is 2.9, and multiply it by 10 raised to the power of the number of places you moved the decimal point.
Since you moved the decimal point four places to the right, the exponent would be -4.
4. The final step is to write the number in scientific notation. It should have two parts:
-The first part is the number you obtained after moving the decimal point, which is 2.9.
-The second part is 10 raised to the power of the number of places you moved the decimal point, which is -4.
Combining these two parts, the number in scientific notation is 2.9 x 10^-4.
So, the correct answer is C- 2.9 x 10^-4.