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kolezko [41]
3 years ago
11

Find the area of a circle that has a diameter of 11 inches. Approximate Π as 3.14. Round your answer to the nearest hundredth.

Mathematics
2 answers:
horsena [70]3 years ago
6 0

Answer: 323.5

Step-by-step explanation: times the 3.14 and 11inches and then rounded.

umka2103 [35]3 years ago
6 0

Answer:

95.03

Step-by-step explanation:i got this answer correct on my quiz

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Y=99.99+23.75(x-1) as a Y=ax+b equation
Hatshy [7]

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y = 23.75x  + 76.24

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y = 99.99 + 23.75(x - 1)

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y = ax + b

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y = 99.99 + 23.75x - 23.75

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The directrix of a parabola is x = 4. Its focus is (2,6) .
Sati [7]

Answer:

Step-by-step explanation:

If you plot the directrix and the focus, you can see that the focus is to the left of the directrix.  Since a parabola ALWAYS wraps itself around the focus, our parabola opens sideways, to the left to be specific.  The formula for the parabola that opens to the left is

-(y-k)^2=4p(x-h)

We will solve this for x at the end.  The negative is out front because it opens to the left.  If it opened to the right, it would be positive.

The vertex of a parabola is exactly halfway between the focus and the directrix, so our vertex coordinates h and k are (3, 6). P is defined as the distance between the vertex and the directrix, or the vertex and the focus.  Since the vertex is directly between both the directrix and the focus, each distance is the same.  P = 1.  Filling in what we have now:

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Now we will solve it for x.

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-\frac{1}{4}(y-6)^2+12=x

4 0
3 years ago
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