Multiply. (2 * 10^1)(3 * 10^1) Choices: (A)8 * 10^2 (B)7 * 10^2 (C)6 * 10^2 (D)1 * 10^2

Identify Coefficients and Power Terms: We have: (2 × 10^1)(3 × 10^1) Group the coefficients and power terms together. Coefficients: 2 and 3 Power terms: 10^1 and 10^1 Multiply Coefficients: What is 2 × 3? Multiply the coefficients. 2 × 3 = 6 Combine Power Terms: Write 10^1 × 10^1 as a single power of 10. When multiplying powers with the same base, we add the exponents. 10^1 × 10^1 = 10^(1 + 1) = 10^2 Write Final Answer in Scientific Notation: We found: Coefficient = 6 Power term = 10^2 Write the final answer in scientific notation. Substitute 6 for a and 2 for b in a × 10^b. Scientific notation: 6 × 10^2

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Multiply. $\newline$ $(2 \times 10^1)(3 \times 10^1)$ $\newline$ Choices: $\newline$ (A) $8 \times 10^2$ $\newline$ (B) $7 \times 10^2$ $\newline$ (C) $6 \times 10^2$ $\newline$ (D) $1 \times 10^2$

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Math Problems

Algebra 1

Multiply numbers written in scientific notation

Full solution

Q. Multiply.

\newline

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

\newline

Choices:

\newline

(A)

8 \times 10^2

\newline

(B)

7 \times 10^2

\newline

(C)

6 \times 10^2

\newline

(D)

1 \times 10^2

Identify Coefficients and Power Terms: We have: $\newline$ $(2 \times 10^1)(3 \times 10^1)$ $\newline$ Group the coefficients and power terms together. $\newline$ Coefficients: $2$ and $3$ $\newline$ Power terms: $10^1$ and $10^1$
Multiply Coefficients: What is $2 \times 3$ ? Multiply the coefficients. $\newline$ $2 \times 3 = 6$
Combine Power Terms: Write $10^1 \times 10^1$ as a single power of $10$ . When multiplying powers with the same base, we add the exponents. $\newline$ $10^1 \times 10^1$ $\newline$ $= 10^{(1 + 1)}$ $\newline$ $= 10^2$
Write Final Answer in Scientific Notation: We found: $\newline$ Coefficient = $6$ $\newline$ Power term = $10^2$ $\newline$ Write the final answer in scientific notation. Substitute $6$ for $a$ and $2$ for $b$ in $a \times 10^b$ . $\newline$ Scientific notation: $6 \times 10^2$