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.
Domain:
-4 ≤ x ≤ 3
or in different form:
x ∈ [-4; 3]
8x40=320 (+) 8x7=56 (=) 376.
A=40
hope this helped
Answer: x=1/8
Step-by-step explanation:
Subtract 3 from both sides
3+ 8x=4
8x=1
Divide by 8 on both sides
x=1/8
Hope this helped! :)
9u+5
9u represents 9 multiplied by a number.
+5 means 5 more than this product.
Hope this helps.
