Question
What is 0.00000025 expressed in scientific notation?
A * 0.2 * 0.5 * 10 ^ - 8
8.2 * 0.5 * 10 ^ 7
OC 2.5 * 10 ^ 7
OD Box 0.2 * 0.5 * 10 ^ 8
A * 0.2 * 0.5 * 10 ^ - 8
8.2 * 0.5 * 10 ^ 7
OC 2.5 * 10 ^ 7
OD Box 0.2 * 0.5 * 10 ^ 8
Answers
GPT-4o mini
To express \( 0.00000025 \) in scientific notation, we need to rewrite it in the form \( a \times 10^n \), where \( 1 \leq a < 10 \) and \( n \) is an integer.
1. We can move the decimal point 7 places to the right to convert \( 0.00000025 \) to \( 2.5 \).
2. However, since we moved the decimal to the right, we must account for this by multiplying by \( 10^{-7} \).
Thus, \( 0.00000025 \) can be expressed in scientific notation as:
\[
2.5 \times 10^{-7}
\]
Looking at your options, none of the provided options directly match this expression. However, `OC 2.5 * 10^7` may appear similar, but it represents a different value since the exponent is positive instead of negative.
To summarize, the correct expression in scientific notation for \( 0.00000025 \) is \( 2.5 \times 10^{-7} \), which you should check against your options for the closest correct representation.
1. We can move the decimal point 7 places to the right to convert \( 0.00000025 \) to \( 2.5 \).
2. However, since we moved the decimal to the right, we must account for this by multiplying by \( 10^{-7} \).
Thus, \( 0.00000025 \) can be expressed in scientific notation as:
\[
2.5 \times 10^{-7}
\]
Looking at your options, none of the provided options directly match this expression. However, `OC 2.5 * 10^7` may appear similar, but it represents a different value since the exponent is positive instead of negative.
To summarize, the correct expression in scientific notation for \( 0.00000025 \) is \( 2.5 \times 10^{-7} \), which you should check against your options for the closest correct representation.