naocarolina6
20.01.2021 •
Mathematics
1. In each case, are the data collected from a census or a sample? Justify your answer.
a) To find the favourite TV show of Grade 8 students in a school, fifteen of the 40 Grade 8 students in the school are surveyed.
b) To find the favourite video game of Ontario 13-year-olds, all 13-year-old students in Ontario are surveyed.
c) happy with the service, some customers in every shop were surveyed. PLEASE HELP!
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Ответ:
36πin²
Step-by-step explanation:
Area of a circle:
r - radius
We are given the diameter of the circle. The radius is half the diameter.
12/2 = 6
The radius is 6cm.
The area of the circle is 36πin².
Hope this helps.