Question

The distance from Betelgeuse to Earth is known to be between

Answer 1

Using proportions, it is found that 400 light years have $3.6 \times 10^{18}$ meters.

• To find how many meters are 400 light years, we use proportions, with a rule of three.

• One light year has $9 \times 10^{15}$ meters.
• How many meters are there in 400 light years, which in scientific notation, is $4 \times 10^2$ light years?

The rule of three is:

1 light year - $9 \times 10^{15}$ meters.

$4 \times 10^2$ light years - x meters

Applying cross multiplication:

$x = 9 \times 10^{15} \times 4 \times 10^2 = 36 \times 10^{17} = 3.6 \times 10^{18}$

Thus, 400 light years have $3.6 \times 10^{18}$ meters.

A similar problem is given at brainly.com/question/23536327

Answer 2

Answer:

Step-by-step explanation: