Answer:
This was an observational study.
Step-by-step explanation:
Given is that parents of children completed a questionnaire on the child’s light exposure both at present and before the age of 2 years.
This was an observational study since there is no treatment or control group.
We know that treatment, control groups or treatment groups are not specific to randomized control experiments.
Answer:
3^3 and 36^1
Step-by-step explanation:
3x3x3x3 is multiplying that 4 times so it is to the power of 4
36 is just once so it is to the power of one
Answer:
x = $5.49 cost of the bananas
Step-by-step explanation:
x = cost of the bananas
$3.89 = cost of the peanut butter
$ 9.38 is the cost of both
Bananas + peanut butter = $9.38
x + $3.89 = $9.38
<u> - $ 3.89 = -$3.89 </u> Subtract $3.89 from both sides
x = $5.49
Answer:
The temperature at the top of a mountain was -3°C in the afternoon. It fell down by 13°C at night. That will bring it to -16°
Answer:
Your answer is c hope this helps
