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andrey2020 [161]
3 years ago
8

How do you find the circumference of a circle? What is the formula?

Mathematics
1 answer:
victus00 [196]3 years ago
8 0

Answer:

\pi r2 or \pi d

Step-by-step explanation:

To find the circumference, you must first find either the diameter or the radius.

To find the diameter, you can multiply the radius twice.

To find the radius, you can divide the diameter by 2.

Once you have the diameter, you then multiply it by pi, also known as 3.14.

OR

Once you have the radius, you them multiply it by pi, also known as 3.14, and then multiply your product by 2.

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What is the vertex form of y=x^2+4x minus 7
Inessa [10]

Answer: Hello Luv........

Complete the square to find the vertex:

   (−2,−11)

Step-by-step explanation:

y=x2+4x−7

=x2+4x+4−11

=(x+2)2−11

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Hope this helps!

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6 0
3 years ago
Select "Yes" or "No" to indicate whether the ordered pair is on the graph of the function f(x)=−9^x+1 .
Vinil7 [7]
I'm assuming your function is f(x) = -9^(x+1)
So we just have to plug in and see if the function is true.

1) -9^(0+1) = -9^1 = -9
YES

2) -9^(1+1) = -9^2 = -81
NO

3) -9^(-1+1) = -9^0 = -1
YES
5 0
3 years ago
Describe the key features of polynomial function
Oksi-84 [34.3K]

Answer:

Zeros: x = 1 , − 2 , 2 End Behavior: Falls to the left and rises to the right.

Y-intercept: (0,4)

Step-by-step explanation:

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3 0
3 years ago
-34.78/-3.7 need help please help ASAP
nataly862011 [7]

Answer:

9.4

Step-by-step explanation:

4 0
2 years ago
Question Progress
mixas84 [53]

Answer:

Please check the attached figure!

Step-by-step explanation:

Part a)

Point A is located at the x-coordinate x=-4 and y-coordinate y=1.

Hence, the coordinates of point A = (-4, 1)

Part b)

Point B(3, -2) has been plotted and is shown in the attached figure.

It is clear from the attached diagram that point B is located at the x-coordinate x=3 and y-coordinate y=-2. Hence, the coordinates of point B = (3, -2)

Part C)

Point C has the same x-coordinate as point A i.e. x=-4 and the same y-coordinate as point B i.e. y=-2.

Hence, the coordinates of point C = (-4, -2). Point C is also plotted as shown in the diagram.

7 0
2 years ago
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