Answer:
[tex]3.4196 \times 10^{7}[/tex]
Step-by-step explanation:
Given expression:
[tex](4.12 \times 10^{-9})(8.3 \times 10^{15})[/tex]
Remove the parentheses:
[tex]\implies 4.12\times 10^{-9} \times 8.3 \times 10^{15}[/tex]
Collect like terms:
[tex]\implies 4.12 \times 8.3 \times 10^{-9} \times 10^{15}[/tex]
Multiply the numbers 4.12 and 8.3:
[tex]\implies 34.196 \times 10^{-9} \times 10^{15}[/tex]
[tex]\textsf{Apply exponent rule} \quad a^b \cdot a^c=a^{b+c}:[/tex]
[tex]\implies 34.196 \times 10^{(-9+15)}[/tex]
[tex]\implies 34.196 \times 10^{6}[/tex]
Scientific notation is written in the form [tex]\boxed{a \times 10^n}[/tex]
where [tex]1\leq a < 10[/tex] and [tex]n[/tex] is any positive or negative whole number.
To convert 34.196 × 10⁶ into scientific notation, move the decimal point to the left by one place and increase the power of 10 by 1:
[tex]\implies 34.196 \times 10^{6}=3.4196 \times 10^{7}[/tex]
