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Add. Write your answer in scientific notation. $\newline$ $(1.568 \times 10^5) + (4.79 \times 10^5)$ $\newline$ Choices: $\newline$ (A) $7.511 \times 10^5$ $\newline$ (B) $6.358 \times 10^{10}$ $\newline$ (C) $7.511 \times 10^{10}$ $\newline$ (D) $6.358 \times 10^5$

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Add and subtract numbers written in scientific notation

Full solution

Q. Add. Write your answer in scientific notation.

\newline

(1.568 \times 10^5) + (4.79 \times 10^5)

\newline

Choices:

\newline

(A)

7.511 \times 10^5

\newline

(B)

6.358 \times 10^{10}

\newline

(C)

7.511 \times 10^{10}

\newline

(D)

6.358 \times 10^5

Add Coefficients: Add the coefficients of the given numbers. $\newline$ $1.568 + 4.79 = 6.358$
Keep Exponent: Since both numbers have the same exponent $10^5$ , we keep the exponent the same in the result. $\newline$ The final answer in scientific notation is $6.358 \times 10^5$ .
Final Answer: Choose the equivalent expression for the final answer from the given choices. $\newline$ The correct choice is $(D) 6.358 \times 10^5$ .

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