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Elena L [17]
3 years ago
6

Find the radius of this circle please..

Mathematics
1 answer:
N76 [4]3 years ago
5 0

Answer:

r = 3 ft

Step-by-step explanation:

Area = 9π

So, πr²=9π where r is the radius

so, r²=9

or, r=√9

or, r=3, since r can't be negative

Answered by GAUTHMATH

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(28-16=12 and 12/3=4)

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Which of the following expressions could represent how many health points the spell restores when Eiko is wearing the magic ring
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1. Without the ring Eiko healing spell restores H health points. This is 100%. After wearing the magic ring her power is increased by 30% and became X. Use proportion

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to find X:

\dfrac{H}{X}= \dfrac{100}{130},\\ \\100\cdot X=H\cdot 130,\\ \\X=\dfrac{130H}{100}.

This is answer form option B.

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