At the last minute, the technology company decides to expand the warehouse and asks the general contractor to double the dimensions of the warehouse. which of the following situations best model the expansion of the warehouse? the expansion of the warehouse will not affect the dimensions of the surrounding fence. the expansion of the warehouse will affect the dimensions of the surrounding fence. the expansion of the warehouse is not possible without also expanding the size of the entire warehouse lot. none of the above.

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."