How would you write 90cm in scientific notation?
9.0 * 10^x
It may looks weird, but 9.0*101 cm is the correct way to write 90 cm in scientific notation.
However, if it is 9.0 cm, then we do not write 9.0*100. We simply write 9.0 and drop out the exponent.
To write 90 cm in scientific notation, we need to find the appropriate power of 10 to represent the decimal part. Since 90 cm is already in the form of a decimal, we can express it as:
9.0 * 10^1
Therefore, 90 cm in scientific notation is 9.0 * 10^1.
To write 90cm in scientific notation, you need to express it as a number between 1 and 10 multiplied by a power of 10. Here's the process to convert 90cm into scientific notation:
Step 1: Determine the decimal form of 90cm.
To convert centimeters to meters, divide the value by 100. In this case, divide 90 by 100:
90 / 100 = 0.9
Step 2: Normalize the decimal form.
We want to express the decimal form as a number between 1 and 10. To do this, we move the decimal point one position to the right:
0.9 becomes 9.0
Step 3: Determine the exponent.
Count the number of places you moved the decimal point to normalize the decimal form. In this case, we moved it one position to the right, so the exponent would be 1.
Step 4: Write in scientific notation.
Combine the normalized decimal form (9.0) with the exponent (1), using the format 9.0 x 10^1 (or 9.0 * 10^1). This represents 90cm in scientific notation.
Therefore, 90cm in scientific notation is written as 9.0 * 10^1.