To make your hypothesis an informed one, you need to have

a.
done some research

b.
completed all your experiments

c.
designed an experimental procedure

d.
made unusual observations that need to be explained

Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.

What occurs during a combustion reaction

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)