BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 1.2, Problem 83E
To determine

To perform: the indicated operation and write the result in scientific notation.

Expert Solution

Answer to Problem 83E

  (7.2×109)(1.806×1012)=1.3×1020

Explanation of Solution

Given information:

Given expression

  (7.2×109)(1.806×1012)

Concept used:

Scientific notation:

A notation in which a given quantity can be expressed as a number with significant digits required for a specified degree of accuracy and multiplied by 10 to the appropriate power.

Formula used:

Law of exponents:

  aman=am+n

Calculation:

Consider the given expression.

  (7.2×109)(1.806×1012)

So, the expression can be simplified as

  (7.2×109)(1.806×1012)=7.2×1.806×109×1012=13.0032×10912=13.0032×1021=1.3×10×1021=1.3×1020

Hence, (7.2×109)(1.806×1012)=1.3×1020 .

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