Question

A graphing calculator displays 1.89 x 10^12 as 1.89e12. How do you think it would display 1.89 x 10^-12? What does the e stand for?

Answer 1

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

Way 1:

$a * 10 ^ b$

Way 2:

$aeb$

Where, in both cases:

a, b: they are real numbers.

Therefore, for the following number:

 $1.89*10^{-12}$

We have an equivalent way is:

$1.89e-12$

Answer:

$1.89e-12$

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

Answer 2

Answer:

$1.89\times 10^{-12}=1.89e-12$

Step-by-step explanation:

Given : A graphing calculator displays $1.89\times 10^{12}$ as 1.89e12.

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

Solution :

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

$1.89\times 10^{12}=1.89e12$

In $1.89\times 10^{-12}$ there is only negative sign difference.

So, $1.89\times 10^{-12}=1.89e-12$