Question

2. Scientific Notation

What power of ten makes this
statement true?
78,000,000,000 = 7.8×____
can someone pls help :(​

Answer 1

`\huge\boxed{78,000,000,000=7.8*10^(10)}`

Explanation:

`\text{The scientific notation:}\\\\a*10^k\\\\\text{where}\ 1\leq a<10\ \text{and}\ k\in\mathbb{Z}\\\\=========================`

`\text{We have:}\\\\78,000,000,000\Rightarrow7\underbrace{8,000,000,000}_(\leftarrow10)=7.8*1\underbrace{0,000,000,000}_(10)=7.8*10^(10)`