Chapter 7: Q12. (page 430)

Express each number in scientific notation.
$0 .0042$

Short Answer

Expert verified

The required notation is represented by $4 .2 \times 10^{- 3}$ .

Step by step solution

Step 1. Change the position of the decimal.

The provided number contains 4 as its first value that is not zero so change the position of the decimal and put that just after the first value.

$0004.2$

Step 2. Calculate the value of n.

The required notation will be in the form of $a \times 10^{n}$ in which a is representing the obtained number by changing the position of the decimal. The value of n is represented by the count associated with the numbers that are present before the final value. The value of n will be negative as the decimal travelled in the right direction. So, write the required value associated with n.

$n = - 3$

Step 3. Write the required notation.

Substitute the obtained value of n into $a \times 10^{n}$ without mentioning the zeros that are not required to write the required notation.

$4.2 \times 10^{- 3}$

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Express each number in scientific notation.
$0 .0042$

Short Answer

Step by step solution

Step 1. Change the position of the decimal.

Step 2. Calculate the value of n.

Step 3. Write the required notation.

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Express each number in scientific notation.0.0042

Short Answer

Step by step solution

Step 1. Change the position of the decimal.

Step 2. Calculate the value of n.

Step 3. Write the required notation.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Applied Mathematics

Discrete Mathematics

Pure Maths

Theoretical and Mathematical Physics

Decision Maths

Probability and Statistics

Study anywhere. Anytime. Across all devices.

Express each number in scientific notation.
$0 .0042$