Basic Math Examples

\sqrt{\frac{(9 \times 10^{9}) (0.000037) (0.000038)}{31}}

$\sqrt{\frac{(9 \times 10^{9}) (0.000037) (0.000038)}{31}}$

Step 1

Convert

0.000037

$0.000037$ to scientific notation.

\sqrt{\frac{9 \cdot 10^{9} \cdot 3.7 \cdot 10^{- 5} \cdot 0.000038}{31}}

$\sqrt{\frac{9 \cdot 10^{9} \cdot 3.7 \cdot 10^{- 5} \cdot 0.000038}{31}}$

Step 2

Multiply

9

$9$ by

3.7

$3.7$ .

\sqrt{\frac{33.3 (10^{9} \cdot 10^{- 5}) \cdot 0.000038}{31}}

$\sqrt{\frac{33.3 (10^{9} \cdot 10^{- 5}) \cdot 0.000038}{31}}$

Step 3

Multiply

10^{9}

$10^{9}$ by

10^{- 5}

$10^{- 5}$ by adding the exponents.

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Step 3.1

Use the power rule

a^{m} a^{n} = a^{m + n}

$a^{m} a^{n} = a^{m + n}$ to combine exponents.

\sqrt{\frac{33.3 \cdot 10^{9 - 5} \cdot 0.000038}{31}}

$\sqrt{\frac{33.3 \cdot 10^{9 - 5} \cdot 0.000038}{31}}$

Step 3.2

Subtract

5

$5$ from

9

$9$ .

\sqrt{\frac{33.3 \cdot 10^{4} \cdot 0.000038}{31}}

$\sqrt{\frac{33.3 \cdot 10^{4} \cdot 0.000038}{31}}$

\sqrt{\frac{33.3 \cdot 10^{4} \cdot 0.000038}{31}}

$\sqrt{\frac{33.3 \cdot 10^{4} \cdot 0.000038}{31}}$

Step 4

Convert

0.000038

$0.000038$ to scientific notation.

\sqrt{\frac{33.3 \cdot 10^{4} \cdot 3.8 \cdot 10^{- 5}}{31}}

$\sqrt{\frac{33.3 \cdot 10^{4} \cdot 3.8 \cdot 10^{- 5}}{31}}$

Step 5

Multiply

33.3

$33.3$ by

3.8

$3.8$ .

\sqrt{\frac{126.54 (10^{4} \cdot 10^{- 5})}{31}}

$\sqrt{\frac{126.54 (10^{4} \cdot 10^{- 5})}{31}}$

Step 6

Multiply

10^{4}

$10^{4}$ by

10^{- 5}

$10^{- 5}$ by adding the exponents.

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Step 6.1

Use the power rule

a^{m} a^{n} = a^{m + n}

$a^{m} a^{n} = a^{m + n}$ to combine exponents.

\sqrt{\frac{126.54 \cdot 10^{4 - 5}}{31}}

$\sqrt{\frac{126.54 \cdot 10^{4 - 5}}{31}}$

Step 6.2

Subtract

5

$5$ from

4

$4$ .

\sqrt{\frac{126.54 \cdot 10^{- 1}}{31}}

$\sqrt{\frac{126.54 \cdot 10^{- 1}}{31}}$

\sqrt{\frac{126.54 \cdot 10^{- 1}}{31}}

$\sqrt{\frac{126.54 \cdot 10^{- 1}}{31}}$

Step 7

Divide using scientific notation.

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Step 7.1

Group coefficients together and exponents together to divide numbers in scientific notation.

\sqrt{(\frac{126.54}{31}) (\frac{10^{- 1}}{1})}

$\sqrt{(\frac{126.54}{31}) (\frac{10^{- 1}}{1})}$

Step 7.2

Divide

126.54

$126.54$ by

31

$31$ .

\sqrt{4.08193548 \frac{10^{- 1}}{1}}

$\sqrt{4.08193548 \frac{10^{- 1}}{1}}$

Step 7.3

Divide

10^{- 1}

$10^{- 1}$ by

1

$1$ .

\sqrt{4.08193548 \cdot 10^{- 1}}

$\sqrt{4.08193548 \cdot 10^{- 1}}$

\sqrt{4.08193548 \cdot 10^{- 1}}

$\sqrt{4.08193548 \cdot 10^{- 1}}$

Step 8

Rewrite

4.08193548 \cdot 10^{- 1}

$4.08193548 \cdot 10^{- 1}$ as

0.40819354 \cdot 10^{0}

$0.40819354 \cdot 10^{0}$ .

\sqrt{0.40819354 \cdot 10^{0}}

$\sqrt{0.40819354 \cdot 10^{0}}$

Step 9

Rewrite

\sqrt{0.40819354 \cdot 10^{0}}

$\sqrt{0.40819354 \cdot 10^{0}}$ as

\sqrt{0.40819354} \cdot \sqrt{10^{0}}

$\sqrt{0.40819354} \cdot \sqrt{10^{0}}$ .

\sqrt{0.40819354} \cdot \sqrt{10^{0}}

$\sqrt{0.40819354} \cdot \sqrt{10^{0}}$

Step 10

Evaluate the root.

0.63890026 \cdot \sqrt{10^{0}}

$0.63890026 \cdot \sqrt{10^{0}}$

Step 11

Rewrite

10^{0}

$10^{0}$ as

{(10^{0})}^{2}

${(10^{0})}^{2}$ .

0.63890026 \cdot \sqrt{{(10^{0})}^{2}}

$0.63890026 \cdot \sqrt{{(10^{0})}^{2}}$

Step 12

Pull terms out from under the radical, assuming positive real numbers.

0.63890026 \cdot 10^{0}

$0.63890026 \cdot 10^{0}$

Step 13

Move the decimal point in

0.63890026

$0.63890026$ to the right by

1

$1$ place and decrease the power of

10^{0}

$10^{0}$ by

1

$1$ .

6.38900264 \cdot 10^{- 1}

$6.38900264 \cdot 10^{- 1}$

Step 14

The result can be shown in multiple forms.

Scientific Notation:

6.38900264 \cdot 10^{- 1}

$6.38900264 \cdot 10^{- 1}$

Expanded Form:

0.63890026

$0.63890026$