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myrzilka [38]
2 years ago
11

Circumference of circle is 16 pie inches. What is the are of the circle

Mathematics
2 answers:
tamaranim1 [39]2 years ago
8 0

Answer:

201.1 sq. m.

Step-by-step explanation:

Area = π · (d2)2 = 3.14 · (162)2 = 3.14 · (8)2 = 201.1 square meters.

Margarita [4]2 years ago
7 0

Answer:

64 pi

Step-by-step explanation:

We know that the diameter is 18 and the radius is 8. 8² is 64 and pi r² is area. 64 times pi is 64 pi! Hope this is useful!

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What are the coordinates of the vertex for f(x) = 2x2 + 4x + 9?
Vlada [557]
Your equation f(x)=2x^2+4x+9 is in the form y=ax^2+bx+c
The vertex only relies on "a" and "b" though, so that +9 doesn't really matter in this case.  The vertex of a parabola is located where 
x=\frac{-b}{2a}=\frac{-4}{2(2)}=-1
So your x-coordinate is -1.  You need to find f(-1) to find your y-coordinate, and then you list it in the form (-1, y).
5 0
2 years ago
Read 2 more answers
All sides of a square and a pentagon are 9 inches long. Are their perimeters the same? Explain
EastWind [94]


No they wouldn't be the same because, the perimeter is adding all sides.

The square has 4 sides so you would add 9, four times.

9 + 9 + 9 + 9 = 36

And a pentagon has 5 sides so you would add 9, five times.

9 + 9 + 9 + 9 + 9 = 45

So, they are not the same.

Hope this helps. :)

4 0
3 years ago
Tonya and Pearl each completed a separate proof to show that alternate interior angles AKL and FLK are congruent. Who completed
zalisa [80]

Answer:

Tonya proof is correct
and Pearl proof is wrong

Step-by-step explanation:

AKL and GKB are obviously congruent. But the reasons given are different, One of the justification is Vertical Angles Theorem, and the other is Adjacent Angles.

But the correct justification is the Vertical Angles Theorem, because the angles are Vertically away from each other, or the angles are at opposite sides of each other. Which is when Vertical Angles Theorem is applied.
Making Tonya correct since that was the answer he given.

The definition of Adjacent Angles is incorrect, this Theorem is used when the angles are Adjacent to each other. When the angles are on the same line as the other angle, is when the definition of Adjacent Angles is applied. Not in this situation

8 0
1 year ago
Is the function ƒ(x) = (–7)x an exponential function? If so, identify the base. If not, why not?
Neko [114]

Answer:No it's not an exponential equation in which f(x)is not qualified to an exponential number. no number from 1 - 20 can be used and get subtracted by 2 to give a square number.

eg-

4×2-2≠ square number

Step-by-step explanation:

5 0
3 years ago
Pleaase. please please help i will mark brainliest
Mademuasel [1]

Answer:

b

Step-by-step explanation:

8 0
2 years ago
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