Question

evaluate the expression. express the result in scientific notation. $\frac{4.55\times10^{9}}{1.3\times10^{4}}$

1. $3.5\times10^{28}$
2. $3.5\times10^{3}$
3. $3.5\times10^{11}$

Explanation:

Step1: Divide the coefficients

$\frac{4.55}{1.3}=3.5$

Step2: Subtract the exponents of 10

$n = 31-28 = 3$

Step3: Write the result in scientific - notation

$3.5\times10^{3}$

Answer:

$3.5\times10^{3}$