A light year is a unit of distance it is the distance that light travels in one year for example the distance from the north star to Earth is about 434 light-years because it takes light about 434 years to travel from the north star to Earth the table is five stars in the constellation Cassiopeia and their approximate distances in light years from Earth light travels at the speed of 3 * 10 ^ 8 meters per second highlight each star in the table that is 7 * 10 ^ 17 meters and 3 * 10 ^ meters from Earth click the name of the start of highlight it.​

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft