Question

Convert (a) $7.5\times {10}^6$ (b) $-4.13\times {10}^{-5}$ to decimal form.

Short answer

Decimal form is

(a)$7500000$

(b)$-0.0000413$

Step-by-step solution

part (a) Step 1 Given information  

$7.5\times {10}^6$

part (a) Step 2

$$\begin{gathered} 7.5\times {10}^6=7.5\times 1000000 \\ =7500000 \end{gathered}$$

part (b) Step 1 Given information  

$-4.13\times {10}^{-5}$

part (b) Step 2

$$\begin{gathered} -4.13\times {10}^{-5}=\frac{-4.13}{100000} \\ =-0.0000413 \end{gathered}$$