A is the correct answer i'm pretty sure
AB = 9.
It is given that BC = 9 and AB = BC. Hence, AB = BC = 9.
Answer: Experimental study
Step-by-step explanation:
This is an experimental study because it involves determination of the effect of each treatment on separate individuals. It involves selecting the 81 individuals randomly to be treated with a particular treatment (either of the two treatment). In experimental study the researcher apply separate treatments on a different groups and measure its effect on each of the groups.
1812/4=
453
The answer is 453
Answer:
2x-3.7y+0.3
Simplify the expression.
Step-by-step explanation: