Question
The length of an object is measured as 15.8 centimeters. What is this measurement in scientific notation?
A.
158 × 10^1 centimeters
B.
1,580 × 10^2 centimeters
C.
0.158 × 10^2 centimeters
D.
1.58 × 10^1 centimeters
A.
158 × 10^1 centimeters
B.
1,580 × 10^2 centimeters
C.
0.158 × 10^2 centimeters
D.
1.58 × 10^1 centimeters
Answers
GPT-4o mini
To express the measurement of 15.8 centimeters in scientific notation, we want to convert it to the form \( a \times 10^n \), where \( 1 \leq a < 10 \) and \( n \) is an integer.
The measurement \( 15.8 \) can be rewritten as:
\[
1.58 \times 10^1
\]
This is because we moved the decimal point one place to the left to get \( 1.58 \), which increases the exponent of 10 by 1.
Thus, the correct answer is:
**D. \( 1.58 \times 10^1 \) centimeters**.
The measurement \( 15.8 \) can be rewritten as:
\[
1.58 \times 10^1
\]
This is because we moved the decimal point one place to the left to get \( 1.58 \), which increases the exponent of 10 by 1.
Thus, the correct answer is:
**D. \( 1.58 \times 10^1 \) centimeters**.