Moving at a constant rate, a trench machine is advertised as being able to dig 36-foot trenches in 49 minutes. a farmer used the same machine to dig trenches that are 58.5 feet long, with each trench taking 65 minutes to complete.

chose the statement describes independent relations between the independent and dependent qualities.

1. the trench links depends on the time spent digging the trench
2. there is no relationship between the trench length and the time spent digging the trench
3. the trench lengthis independent for the time spent digging
4. the time spent digging the trench depends on the trench length

idn

step-by-step explanation:

step-by-step explanation:

we are given a graph for system of inequalities.

in order to write the system of inequalities for the given graph, we need to find the inequality for each of the line separately.

let us find the slope of dotted line first.

taking two coordinates on the graph.

let us say (0,0) and (3,1).

let us find the slope of the line now.

slope of the dotted line would be =.

y-intercept of dotted line is y=0 only.

plugging slope m= and b=0 in slope-intercept form y=mx+b, we get

.

the line is shaded up of that dotted line.

therefore, for shading up we would take greater than inequality symbol > .

and because it's a dotted line we would take only > symbol in place of = sign in above equation of line.

therefore, inequality for dotted line would be

let us take two points (3,1) and (0,4) on the solid line.

slope of the solid line would be =.

for the solid line we have y-intercept b= 4.

plugging slope m= -1 and b=4 in slope-intercept form y=mx+b, we get

y = -1x + 4.

the line is shaded down of that solid line.

therefore, for shading down we would take less than inequality symbol < .

and because it's a solid line we would take ≤ symbol in place of = sign in above equation of line.

therefore, inequality for solid line would be

sorry

step-by-step explanation:

sorry, but im pretty sure its a now that i look at it