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A typical business card is $0.013$ inches thick. How would you write the approximate thickness in scientific notation? $\newline$ Choices: $\newline$ (A) $1 \times 10^2$ inches $\newline$ (B) $1 \times 10^{-2}$ inches $\newline$ (C) $1 \times 10^3$ inches $\newline$ (D) $1 \times 10^{-3}$ inches

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Volume of cubes and rectangular prisms: word problems

Full solution

Q. A typical business card is

0.013

inches thick. How would you write the approximate thickness in scientific notation?

\newline

Choices:

\newline

(A)

1 \times 10^2

inches

\newline

(B)

1 \times 10^{-2}

inches

\newline

(C)

1 \times 10^3

inches

\newline

(D)

1 \times 10^{-3}

inches

Convert to Scientific Notation: Convert the thickness of the business card to scientific notation by identifying the decimal place to create a number between $1$ and $10$ . $\$0.013$ inches = $1.3 \times 10^{-2}$ inches).
Choose Correct Answer: Choose the correct answer from the given choices that matches the scientific notation. $\newline$ $1.3 \times 10^{-2}$ inches is approximately $1 \times 10^{-2}$ inches, so the correct choice is (B) $1 \times 10^{-2}$ inches.

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