# Question #99d73

Mar 16, 2017

Because we do not need to move the decimal point we can multiply this term by $1$ or ${10}^{0}$

$7.5 = 7.5 \times {10}^{0}$ in scientific notation.

Mar 16, 2017

$7.5 \times {10}^{0}$

#### Explanation:

A number expressed in $\textcolor{b l u e}{\text{scientific notation}}$ has the form.

$\textcolor{red}{\overline{\underline{| \textcolor{w h i t e}{\frac{2}{2}} \textcolor{b l a c k}{a \times {10}^{n}} \textcolor{w h i t e}{\frac{2}{2}} |}}}$

where $1 \le a < 10 \text{ and n is an integer}$

$7.5 \text{ is in this interval so requires no adjustment}$

$\textcolor{\mathmr{and} a n \ge}{\text{Reminder }} {a}^{0} = 1$

$\Rightarrow 7.5$

$= 7.5 \times 1$

$= 7.5 \times {10}^{0}$