Braden wants to compare the types of ducks in two nearby ponds. he collected two samples using the following criteria. for sample 1, he counted the types of ducks on walden pond from 6 a. m. to 9 a. m. for sample 2, he counted the number of mallard ducks that were on brook’s pond from 12 p. m. to 3 p. m. what would improve braden’s plan? check all that apply.

I know for a fact that it is a b and c

Step-by-step explanation:

i did the test on edge

i believe the answer is d.

hope it you! : d

- "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."