Add. Write your answer in scientific notation. (2.8 * 10^3) + (4.3 * 10^3) Choices: (A)7.1 * 10^3 (B)4.58 * 10^6 (C)7.1 * 10^6 (D)4.58 * 10^3

Add Coefficients: We have the following expression to add: (2.8 * 10^3) + (4.3 * 10^3) Since both terms have the same power of 10, we can directly add the coefficients. What is 2.8 + 4.3? 2.8 + 4.3 = 7.1Convert to Scientific Notation: Write the answer in scientific notation. Since we have found the sum of the coefficients to be 7.1, we keep the power of 10 the same. Scientific notation: 7.1 * 10^3Choose Equivalent Expression: Choose the equivalent expression for (2.8 * 10^3) + (4.3 * 10^3). (2.8 * 10^3) + (4.3 * 10^3) = 7.1 * 10^3 The correct choice is (A)7.1 * 10^3.

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Add. Write your answer in scientific notation. $\newline$ $(2.8 \times 10^3) + (4.3 \times 10^3)$ $\newline$ Choices: $\newline$ (A) $7.1 \times 10^3$ $\newline$ (B) $4.58 \times 10^6$ $\newline$ (C) $7.1 \times 10^6$ $\newline$ (D) $4.58 \times 10^3$

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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

(2.8 \times 10^3) + (4.3 \times 10^3)

\newline

Choices:

\newline

(A)

7.1 \times 10^3

\newline

(B)

4.58 \times 10^6

\newline

(C)

7.1 \times 10^6

\newline

(D)

4.58 \times 10^3

Add Coefficients: We have the following expression to add: $\newline$ $(2.8 \times 10^3) + (4.3 \times 10^3)$ $\newline$ Since both terms have the same power of $10$ , we can directly add the coefficients. $\newline$ What is $2.8 + 4.3$ ? $\newline$ $2.8 + 4.3 = 7.1$
Convert to Scientific Notation: Write the answer in scientific notation. $\newline$ Since we have found the sum of the coefficients to be $7.1$ , we keep the power of $10$ the same. $\newline$ Scientific notation: $7.1 \times 10^3$
Choose Equivalent Expression: Choose the equivalent expression for $(2.8 \times 10^3) + (4.3 \times 10^3)$ . $(2.8 \times 10^3) + (4.3 \times 10^3) = 7.1 \times 10^3$ The correct choice is $(A)7.1 \times 10^3$ .