Respuesta :
[tex]7.5*10^{10}[/tex] in scientific notation (also called standard form).
The scientific notation:
[tex]a\cdot10^k\\\\1\leq a < 10,\ k\in\mathbb{Z}[/tex]
[tex]7\underbrace{5,000,000,000.}_{\leftarrow10}=7.50000000000\cdot10^{10}=7.5\cdot10^{10}[/tex]