Answer:
r=28.27 cm aprox
Step-by-step explanation:
Well you know that the area of a circle is A= so
2511= so
=2511/
r=28.27 cm aprox
1. A number minus 6 is – 22. Find the number,
2 answers:
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Answer:
x = ± 12
Step-by-step explanation:
Given
f(x) = x² - 144
To find the roots set f(x) = 0, that is
x² - 144 = 0 ( add 144 to both sides )
x² = 144 ( take the square root of both sides )
x = ± = ± 12