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leva [86]
3 years ago
7

Find the circumference and area of a circle with a diameter of 22 inches. Leave your answers in terms of pi.

Mathematics
2 answers:
Cerrena [4.2K]3 years ago
5 0

Answer: d. C = 22π   ; A = 121π

Step-by-step explanation:

Circumference of a circle with diameter d is given by :-

C=\pi d

Given: Diameter of circle = 22 inches

Therefore, the circumference of circle is given by :-

C=\pi (22)=22\pi

Area of circle: A=\pi r^2, where r is radius of circle.

Since diameter = 22 inches, then radius = 11 inches   [Half of diameter]

Now, Area of circle: A=\pi (11)^2=121\pi

astra-53 [7]3 years ago
4 0
The circumference formula is 
C=Diameter x π=22 x π, the area formula is A=<span>π x R²
or R=</span><span>D/2=22/2=11

the answer is </span><span>d. C = 22π; A = 121π</span>
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A quadratic equation is shown below:
sweet [91]

Answer:

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Part B:

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Step-by-step explanation:

The quadratic equation

3x^{2}-11x+10=0 has been given.

Part A:

We are required to determine the vertex. The vertex is simply the turning point of the quadratic function. We shall differentiate the given quadratic function and set the result to 0 in order to obtain the co-ordinates of its vertex.

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y = -0.08333

The vertex is thus located at the point;

( 1.8333, -0.08333)

Find the attached

Part B:

We can use the quadratic formula to solve for x as follows;

The quadratic formula is given as,

x=\frac{-b+/-\sqrt{b^{2}-4ac } }{2a}

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We substitute these values into the above formula and simplify to determine the value of x;

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6 0
3 years ago
Select two statements that are true about the equation y+4=-8(x-2)
bezimeni [28]

Answer:

Step-by-step explanation:

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I dont know the statements that u have but maybe I can guess one...or two

slope = -8

points used were : (2,-4)

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any of that answer ur question ?

5 0
3 years ago
Read 2 more answers
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SCORPION-xisa [38]

Answer:

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  B: -6 < -7 . . . . false

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4 0
3 years ago
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