Question

Write 89.99 in scientific notation. \[ \begin{aligned} 89.99 & =\frac{8999}{100} \\ & =\frac{8999}{10^{2}} \\ & =8999 \times 10^{-2} \\ & =\left(8999 \times \frac{1000}{1000}\right) \times 10^{-2} \\ & =(8.999 \times 1000) \times 10^{-2} \\ & =8.999 \times 10^{3} \times 10^{-2} \\ & =8.999 \times 10^{3-2} \end{aligned} \]

          Write 89.99 in scientific notation.
\[
\begin{aligned}
89.99 & =\frac{8999}{100} \\
& =\frac{8999}{10^{2}} \\
& =8999 \times 10^{-2} \\
& =\left(8999 \times \frac{1000}{1000}\right) \times 10^{-2} \\
& =(8.999 \times 1000) \times 10^{-2} \\
& =8.999 \times 10^{3} \times 10^{-2} \\
& =8.999 \times 10^{3-2}
\end{aligned}
\]

Write 89.99 in scientific notation.

89.99 =(8999)/(100)
=(8999)/(10^2)
=8999 × 10^-2
=(8999 ×(1000)/(1000)) × 10^-2
=(8.999 × 1000) × 10^-2
=8.999 × 10^3× 10^-2
=8.999 × 10^3-2

Added by Erica S.

Algebra 1: Concepts and Skills

Ron Larson, Laurie Boswell, Holt… 1st Edition

Chapter 8

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Solved by Expert Allison Knapp

Step 1

99 as a fraction. \[ 89.99 = \frac{8999}{100} \] Show more…

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Write 89.99 in scientific notation. \[ \begin{aligned} 89.99 & =\frac{8999}{100} \\ & =\frac{8999}{10^{2}} \\ & =8999 \times 10^{-2} \\ & =\left(8999 \times \frac{1000}{1000}\right) \times 10^{-2} \\ & =(8.999 \times 1000) \times 10^{-2} \\ & =8.999 \times 10^{3} \times 10^{-2} \\ & =8.999 \times 10^{3-2} \end{aligned} \]