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Mandarinka [93]
3 years ago
8

What is the circumference of a circle if the radius is 3 units

Mathematics
2 answers:
maks197457 [2]3 years ago
4 0
The circumference would be 18.85
larisa [96]3 years ago
3 0

Answer:

<em><u>C = 18.86 units</u></em>

Step-by-step explanation:

Circumference = πd. d is diameter = 2r

= π ( 2r ). r is radius

C = 2πr

C = 2π × 3

C = 2 × 22/7 × 3

C = 18.86 units

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Decompose the figure into regions that are closest to each
Korolek [52]

The image is decomposed as follows: H1 and H2. Where original graph is Hx.

<h3>Are the images (attached) valid decompositions of the original graph?</h3>

  • Yes, they are because, H1 and H1 are both sub-graphs of Hx; also
  • H1 ∪ H2 = Hx
  • They have no edges in common.

Hence, {H1 , H2} are valid decomposition of G.

<h3>What is a Graph Decomposition?</h3>

A decomposition of a graph Hx is a set of edge-disjoints sub graphs of H, H1, H2, ......Hn, such that UHi = Hx

See the attached for the Image Hx - Pre decomposed and the image after the graph decomposition.

Learn more about decomposition:
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7 0
1 year ago
Find 310% of 150. a number blank
Ede4ka [16]

Answer:

465

Step-by-step explanation:

Of means multiply

310% * 150

Change to decimal form

3.10 * 150

465

7 0
3 years ago
Read 2 more answers
Question 1: The water level in a tank can be modeled by the function h(t)=4cos(+)+10, where t is the number of hours
Amanda [17]

Answer:

Question 1: The hours that will pass between two consecutive times, when the water is at its maximum height is π hours

Question 2: Sin of the angle is -0.8

Step-by-step explanation:

Question 1: Here we have h(t) = 4·cos(t) + 10

The maximum water level can be found by differentiating h(t) and equating the result to zero as follows;

\frac{\mathrm{d}  h(t)}{\mathrm{d} t} = \frac{\mathrm{d} \left (4cos(t) + 10  \right )}{\mathrm{d} t} = 0

\frac{\mathrm{d}  h(t)}{\mathrm{d} t} = - 4 \times sin(t) = 0

∴ sin(t) = 0

t = 0, π, 2π

Therefore, the hours that will pass between two consecutive times, when the water is at its maximum height = π hours.

Question 2:

B = (3, -4)

Equation of circle = x² + y² = 25

Here we have

Distance moved along x coordinate = 3

Distance moved along y coordinate = -4

Therefore, we have;

Tan \theta = \frac{Distance \ moved \ along \ y \ coordinate}{Distance \ moved \ along \ x \ coordinate} = \frac{-4}{3}

\therefore \theta = Tan^{-1}(\frac{-4}{3}) = -53.13^{\circ}

Sinθ = sin(-53.13) = -0.799≈ -0.8.

5 0
2 years ago
Alw<br>IM<br><img src="https://tex.z-dn.net/?f=15%20%5Cdiv%20%20%5Cfrac%7B3%7D%7B5%7D%20" id="TexFormula1" title="15 \div \frac
Orlov [11]
Answer 25
Is the answer for this question
5 0
3 years ago
Simplify 3k^2 + 8.2 - k^2 + 12.6
Ede4ka [16]

Answer:

1. Collect like terms.

(3k^2 - k^2) + (8.2 + 12.6)

2. Simplify Answer;

2k^2 + 20.8

5 0
3 years ago
Read 2 more answers
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