Respuesta :

What you need to know for this case is that the calculator is using the scientific notation in two different ways:

Way 1:

[tex]a * 10 ^ b[/tex]

Way 2:

[tex]aeb[/tex]

Where, in both cases:

a, b: they are real numbers.

Therefore, for the following number:

 [tex]1.89*10^{-12}[/tex]

We have an equivalent way is:

[tex]1.89e-12[/tex]

Answer:

[tex]1.89e-12[/tex]

The e refers to the exponent to which the base 10 is elevated.

Answer:

[tex]1.89\times 10^{-12}=1.89e-12[/tex]

Step-by-step explanation:

Given : A graphing calculator displays [tex]1.89\times 10^{12}[/tex] as 1.89e12.

To find : How do you think it would display [tex]1.89\times 10^{-12}[/tex]? What does the e stand for?

Solution :

In a graphing calculator 'e' stand for exponent of 10.

[tex]1.89\times 10^{12}=1.89e12[/tex]

In [tex]1.89\times 10^{-12}[/tex] there is only negative sign difference.

So, [tex]1.89\times 10^{-12}=1.89e-12[/tex]