Question

which number is equal to 7(3.5x10^4) written in scientific notation

Answer 1

The answer is 2.45 × 10⁵

7(3.5 × 10⁴) = 7 * 3.5 × 10⁴
                   = 24.5 × 10⁴
                   = 2.45 × 10 × 10⁴
                   = 2.45 × 10¹⁺⁴
                   = 2.45 × 10⁵

Answer 2

Answer:

The answer is:

$2.45\times 10^5$

Step-by-step explanation:

We are asked to expression the value of the given expression:

$7(3.5\times 10^4)$ in scientific notation.

We know that any number in scientific notation is expressed as:

So the number is written in two parts:

• Just the digits (with the decimal point placed after the first digit), followed by

• × 10 to a power that puts the decimal point where it should be .

Now the value of $7(3.5\times 10^4)$ is:

$7(3.5\times 10^4)=7\times 3.5\times 10^4\\\\7(3.5\times 10^4)=24.5\times 10^4$

in scientific notation the number $24.5\times 10^4$ is expressed as:

$2.45\times 10^5$

Hence, the scientific notation of $7(3.5\times 10^4)$ is:

$2.45\times 10^5$