Claude7617
07.12.2019 •
Mathematics
What's the circumference of a circle with a diameter of 12 ft?
a. 264 ft.
b. 84 ft.
c. 19 ft.
d. 37.7 ft.
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Ответ:
The formula to find the circumference of a circle is:
Where "C" is circumference and "d" is diameter.
Substituting your values in, we have:
Which, when rounded, is 37.7.
Ответ:
x = -8, 2
Step-by-step explanation:
x^2 + 6x - 6 = 10
Subtract 10 from both sides
x^2 + 6x - 16 = 0
Factor
(x - 2)(x + 8) = 0
x = -8, 2