Question

Which of these numbers is a square number?

4x10^5 9x10^4 4x10^3 9x10^3

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

Option B is correct. The required answer is 3 \times 10^23×10

2

For us to know which one is a square number, we must be able to find its square root as shown:

The power of 10 of the scientific value must be even for the number to be a square number. From the options given, 9x10^4 has an even exponent.

Find the square root

\sqrt{9\times10^4} = 3\times \sqrt{10^4} = 3 \times 10^2

9×10

4

=3×

10

4

=3×10

2

Hence the required answer is 3 \times 10^23×10

2

Learn more here: https://brainly.com/question/17517264

Step-by-step explanation:

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