Add. Write your answer in scientific notation. (2.3 * 10^5) + (7.49 * 10^5) Choices: (A)7.72 * 10^5 (B)7.72 * 10^10 (C)9.79 * 10^10 (D)9.79 * 10^5

Identify Coefficients: We have: (2.3 * 10^5) + (7.49 * 10^5) Since the powers of 10 are the same, we can directly add the coefficients. What is 2.3 + 7.49? 2.3 + 7.49 = 9.79Convert to Scientific Notation: Write the answer in scientific notation. Substitute 9.79 for the coefficient and 5 for the exponent in a * 10^b. Scientific notation: 9.79 * 10^5Find Equivalent Expression: Choose the equivalent expression for (2.3 * 10^5) + (7.49 * 10^5). (2.3 * 10^5) + (7.49 * 10^5) = 9.79 * 10^5 (2.3 * 10^5) + (7.49 * 10^5) is equivalent to 9.79 * 10^5.

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Add. Write your answer in scientific notation. $\newline$ $(2.3 \times 10^5) + (7.49 \times 10^5)$ $\newline$ Choices: $\newline$ (A) $7.72 \times 10^5$ $\newline$ (B) $7.72 \times 10^{10}$ $\newline$ (C) $9.79 \times 10^{10}$ $\newline$ (D) $9.79 \times 10^5$

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Math Problems

Algebra 1

Add and subtract numbers written in scientific notation

Full solution

Q. Add. Write your answer in scientific notation.

\newline

(2.3 \times 10^5) + (7.49 \times 10^5)

\newline

Choices:

\newline

(A)

7.72 \times 10^5

\newline

(B)

7.72 \times 10^{10}

\newline

(C)

9.79 \times 10^{10}

\newline

(D)

9.79 \times 10^5

Identify Coefficients: We have: $\newline$ $(2.3 \times 10^5) + (7.49 \times 10^5)$ $\newline$ Since the powers of $10$ are the same, we can directly add the coefficients. $\newline$ What is $2.3 + 7.49$ ? $\newline$ $2.3 + 7.49 = 9.79$
Convert to Scientific Notation: Write the answer in scientific notation. $\newline$ Substitute $9.79$ for the coefficient and $5$ for the exponent in $a \times 10^b$ . $\newline$ Scientific notation: $9.79 \times 10^5$
Find Equivalent Expression: Choose the equivalent expression for $(2.3 \times 10^5) + (7.49 \times 10^5)$ . $(2.3 \times 10^5) + (7.49 \times 10^5) = 9.79 \times 10^5$ $(2.3 \times 10^5) + (7.49 \times 10^5)$ is equivalent to $9.79 \times 10^5$ .