Answer:
A = pi*(8 mm)^2 = 64*pi mm^2
Step-by-step explanation:
The formula for the area of a circle is A = pi*r^2, where r is the radius. Thus, r^2 = (25pi) / pi, or 25, and r = 5 mm.
If we increase this radius by 3 mm, we get the new radius 8 mm. The area of the new circle will thus be A = pi*r^2, or, in this particular case,
A = pi*(8 mm)^2 = 64*pi mm^2.
Answer:
Step-by-step explanation:
Experimentally it landed on tails 5/12 tails/rolls=5/12 so if this continues how many rolls will it take to get 30 tails?
5/12=30/r
5r=12(30)
5r=360
r=72
72 rolls to get 30 tails
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Answer:
A
Step-by-step explanation:
