Chapter 5: Q. 170 (page 523)

Multiply (a) $(3 \times 10^{- 5}) (3 \times 10^{9})$ to get answer in decimal form
Divide (b) $\frac{7 \times 10^{- 3}}{1 \times 10^{- 7}}$ to get answer in decimal form

Short Answer

Expert verified

(a) Multiplied result is $90000$

(b) Divided result is $70000$

Step by step solution

part (a) Step 1 Given information

$(3 \times 10^{- 5}) (3 \times 10^{9})$

part (a) Step 2

$(3 \times 10^{- 5}) (3 \times 10^{9}) = 3 \times 3 \times 10^{- 5 + 9} = 9 \times 10^{4} = 90000$

part (b) Step 1 Given information

$\frac{7 \times 10^{- 3}}{1 \times 10^{- 7}}$

part (b) Step 2

$\frac{7 \times 10^{- 3}}{1 \times 10^{- 7}} = \frac{7}{1} \times 10^{- 3 + 7} = 7 \times 10^{4} = 70000$

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Multiply (a) $(3 \times 10^{- 5}) (3 \times 10^{9})$ to get answer in decimal form
Divide (b) $\frac{7 \times 10^{- 3}}{1 \times 10^{- 7}}$ to get answer in decimal form

Short Answer

Step by step solution

part (a) Step 1 Given information

part (a) Step 2

part (b) Step 1 Given information

part (b) Step 2

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Multiply (a) 3×10-53×109 to get answer in decimal formDivide (b)7×10-31×10-7to get answer in decimal form

Short Answer

Step by step solution

part (a) Step 1 Given information

part (a) Step 2

part (b) Step 1 Given information

part (b) Step 2

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Multiply (a) $(3 \times 10^{- 5}) (3 \times 10^{9})$ to get answer in decimal form
Divide (b) $\frac{7 \times 10^{- 3}}{1 \times 10^{- 7}}$ to get answer in decimal form