Multiply. (1 * 10^1)(9 * 10^3) Choices: (A)9 * 10^3 (B)6 * 10^4 (C)6 * 10^3 (D)9 * 10^4

Group Coefficients and Power Terms: We have: (1 × 10^1)(9 × 10^3) Group the coefficients and power terms together. Coefficients: 1 and 9 Power terms: 10^1 and 10^3Multiply Coefficients: What is 1 × 9? Multiply the coefficients. 1 × 9 = 9Combine Power Terms: Write 10^1 × 10^3 as a single power of 10. When multiplying powers with the same base, we add the exponents. 10^1 × 10^3 = 10^(1 + 3) = 10^4Final Scientific Notation: We found: Coefficient = 9 Power term = 10^4 Write the final answer in scientific notation. Substitute 9 for a and 4 for b in a × 10^b. Scientific notation: 9 × 10^4

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Multiply. $\newline$ $(1 \times 10^1)(9 \times 10^3)$ $\newline$ Choices: $\newline$ (A) $9 \times 10^3$ $\newline$ (B) $6 \times 10^4$ $\newline$ (C) $6 \times 10^3$ $\newline$ (D) $9 \times 10^4$

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Math Problems

Algebra 1

Multiply numbers written in scientific notation

Full solution

Q. Multiply.

\newline

(1 \times 10^1)(9 \times 10^3)

\newline

Choices:

\newline

(A)

9 \times 10^3

\newline

(B)

6 \times 10^4

\newline

(C)

6 \times 10^3

\newline

(D)

9 \times 10^4

Group Coefficients and Power Terms: We have: $\newline$ $(1 \times 10^1)(9 \times 10^3)$ $\newline$ Group the coefficients and power terms together. $\newline$ Coefficients: $1$ and $9$ $\newline$ Power terms: $10^1$ and $10^3$
Multiply Coefficients: What is $1 \times 9$ ? Multiply the coefficients. $\newline$ $1 \times 9 = 9$
Combine Power Terms: Write $10^1 \times 10^3$ as a single power of $10$ . When multiplying powers with the same base, we add the exponents. $\newline$ $10^1 \times 10^3$ $\newline$ $= 10^{(1 + 3)}$ $\newline$ $= 10^4$
Final Scientific Notation: We found: $\newline$ Coefficient = $9$ $\newline$ Power term = $10^4$ $\newline$ Write the final answer in scientific notation. Substitute $9$ for $a$ and $4$ for $b$ in $a \times 10^b$ . $\newline$ Scientific notation: $9 \times 10^4$