Answer:
C.) each treatment is thought of as a value of the explanatory variable
Step-by-step explanation:
The main purpose for using randomization in an experiment is to control the lurking variable and establish a cause and effect relationship.
If we do not control lurking, or confounding, variables, we cannot accurately establish a cause and effect relationship; this means we cannot ensure that each treatment is a value of the explanatory variable.
6--3=9
15-6=9,
so
24+9=33,
33+9=42,
42+9=51
33,42,51
2/3 is the smallest fraction. So, 2/3 is the smallest ratio....!
Hope this helps luv!!!! :>
Answer: (v + 7)(v -3)
Step-by-step explanation:
(v +7)(v -3)
v x v = v^2
v x -3 = -3v
7 x v = 7v
7 x -3 = -21
v^2 -3v +7v -21 = v^2 +4v -21 = 0
<span>C12H22O11(s)+12O2(g) =12CO2(g)+11H2O(g)</span>
