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Grace [21]
3 years ago
6

For a while, I've been looking into the discovery of pi. For some I still do not quite grasp it. How was pi discovered and what

methods were used to discover pi?
Mathematics
1 answer:
GarryVolchara [31]3 years ago
4 0
I don't know how it was discovered, but i do know for a fact that it is 22 divided by 7
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Your bank account has a balance of −$12. You deposit $60. What is your new balance?
GarryVolchara [31]

Answer:

Your balance will be 48

Step-by-step explanation:

If you have -12 add 60 that will equal 48

5 0
3 years ago
Find an equation of the circle that satisfies the given conditions.
hodyreva [135]
The equation of a circle:
(x-h)^2+(y-k)^2=r^2
(h,k) - the coordinates of the centre
r - the radius

The midpoint of the diameter is the centre of a circle.
The coordinates of the midpoint:
(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})
(x₁,y₁), (x₂,y₂) - the coordinates of endpoints

P(-1,1) \\
x_1=-1 \\ y_1=1 \\ \\ Q(5,9) \\ x_2=5 \\ y_2=9 \\ \\
\frac{x_1+x_2}{2}=\frac{-1+5}{2}=\frac{4}{2}=2 \\ \frac{y_1+y_2}{2}=\frac{1+9}{2}=\frac{10}{2}=5

The centre of the circle is (2,5).

The radius is the distance between an endpoint of the diameter and the centre.
The formula for distance:
d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

(-1,1) \\ x_1=-1 \\ y_1=1 \\ \\ (2,5) \\ x_2=2 \\ y_2=5 \\ \\ d=\sqrt{(2-(-1))^2+(5-1)^2}=\sqrt{3^2+4^2}=\sqrt{9+16}=\sqrt{25}=5

The radius is 5.

(x-2)^2+(y-5)^2=5^2 \\
\boxed{(x-2)^2+(y-5)^2=25}
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Whats the question? It prints 3 photos a minute.
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Step-by-step explanation:

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