Subtract. Write your answer in scientific notation. (6.9 * 10^9) - (3.89 * 10^9) Choices: (A)2.684 * 10^9 (B)2.684 * 10^10 (C)3.01 * 10^10 (D)3.01 * 10^9

Subtract Coefficients, Keep Exponent: Subtract the coefficients of the given numbers while keeping the exponent the same since they are both to the power of 9. 6.9 - 3.89 = 3.01Write in Scientific Notation: Write the final answer in scientific notation using the same exponent since the base of 10 is the same for both numbers. 3.01 × 10^9Choose Equivalent Expression: Choose the equivalent expression for the final answer from the given choices. The correct choice is (D) 3.01 * 10^9

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Subtract. Write your answer in scientific notation. $\newline$ $(6.9 \times 10^9) - (3.89 \times 10^9)$ $\newline$ Choices: $\newline$ (A) $2.684 \times 10^9$ $\newline$ (B) $2.684 \times 10^{10}$ $\newline$ (C) $3.01 \times 10^{10}$ $\newline$ (D) $3.01 \times 10^9$

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Math Problems

Grade 8

Add and subtract numbers written in scientific notation

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Q. Subtract. Write your answer in scientific notation.

\newline

(6.9 \times 10^9) - (3.89 \times 10^9)

\newline

Choices:

\newline

(A)

2.684 \times 10^9

\newline

(B)

2.684 \times 10^{10}

\newline

(C)

3.01 \times 10^{10}

\newline

(D)

3.01 \times 10^9

Subtract Coefficients, Keep Exponent: Subtract the coefficients of the given numbers while keeping the exponent the same since they are both to the power of $9$ . $6.9 - 3.89 = 3.01$
Write in Scientific Notation: Write the final answer in scientific notation using the same exponent since the base of $10$ is the same for both numbers. $\newline$ $3.01 \times 10^9$
Choose Equivalent Expression: Choose the equivalent expression for the final answer from the given choices. $\newline$ The correct choice is $(D) 3.01 \times 10^9$