Maxwell’s research group is conducting a study on the relationship between daytime toddler naps and dinnertime appetite. some groups are assigned to a 1 ½-2 ½ hour afternoon nap, some to a 30-60 minutes nap, or some to no nap at all. the amount they eat for dinner is recorded. in this study, the is the dependent variable and is the control group.

In this study, the amount they eat for dinner is the dependent vairable and the no nap group is the control group.

Step-by-step explanation:

In the studies there are independent and dependent variables, in which the first ones, determine the second ones, this means that you control the independent variables establishing in this case the time each group is going to nap, and analize the effects of this with the dependent variables, in this case you are going to record the amount they eat for dinner, because you want to establish the relationship between daytime toddler naps and dinnertime appetite.

So

Control - Independent (control naps time)

Results - Dependent (amount they eat)

Now, the control group is the one that doesn't takes a nap, because you need a referent point so you can compare the different scenarios.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

where r the answers

step-by-step explanation: