1. 4.374
2. 52.64
3. 840.5
Answer:

Step-by-step explanation:


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<h3>Hope it is helpful....</h3>
Answer:
363
Step-by-step explanation:
Formula for area of a circle
A = πr^2
Where r = radius
The circle has a given radius of 11
To find the area of the circle we simply substitute r in the formula with the value of the radius (11)
( Also note that the question says to use 3 for π )
A = πr^2
π = 3
r = 11
Substitute values in formula
A = (3)(11)^2
11^2 = 121
A = 121(3)
121(3) = 363
A = 363
Answer:
stratified sample
Step-by-step explanation:
Subtract 1:
x/4=2
multiply by 4:
x=8 which is the answer