Answer:
The area of a circle is pi times the radius squared (A = π r²).
Step-by-step explanation:
(I'm not sure how to explain this further)
Hope this helps!
-Coconut;)
Answer:
first one with -1...21
Step-by-step explanation:
only one that follows quadratic formula format
Answer:
There is no solution the answers there is not the right answer
Answer: There are 30 participants are needed for the entire study.
Step-by-step explanation:
Since we have given that
Number of levels of factor A = 2
Number of levels of factor B = 3
Number of participants in each treatment condition = 5
So, the number of participants are needed for the entire study is given by

Hence, there are 30 participants are needed for the entire study.
Answer:
11 is 150
12 is 168 lectures and 70 professers
Step-by-step explanation: