The magnitudes of the moon and sirius are -12.5 and -1.44, respectively. approximately how many times is the moon brighter than sirius?

Solution:

we are given that

The magnitudes of the moon and Sirius are -12.5 and -1.44 respectively.

we have been asked to find approximately how many times is the moon brighter than Sirius?

The word magnitude is used by the scientist to describe the brightness of moon/star/object etc.

So we can find the brightness by dividing the given values. so we get

Hence we can say

The moon is 8.68 times brighter than Sirius.

1     sepan

2     encuentren

3     tenga

4     hable

5   parezca

6   llegue

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation