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Alinara [238K]
2 years ago
13

Kruskal’s algorithm might produce a non-minimal spanning tree. S2. Kruskal’s algorithm can efficiently implemented using the dis

joint-set data structure. S1 is true but S2 is false Both S1 and S2 are false Both S1 and S2 are true S2 is true but S1 is false
Mathematics
1 answer:
Aleks [24]2 years ago
4 0

Complete Question:

Consider the following statements.

S1. Kruskal’s algorithm might produce a non-minimal spanning tree.

S2. Kruskal’s algorithm can efficiently be implemented using the disjoint-set data structure.

a) S1 is true but S2 is false

b) Both S1 and S2 are false

c) Both S1 and S2 are true

d) S2 is true but S1 is false

Answer:

d) S2 is true but S1 is false

Step-by-step explanation:

Kruskal's algorithm is an algorithm that produces minimum spanning tree  and finds an edge of the least possible weight that connects any two trees in the forest. It is a greedy algorithm in graph theory that finds a minimum spanning tree for a connected weighted graph and adds increasing cost arcs at each of the steps.

In Kruskal’s algorithm, the disjoint-set data structure is used for its implementation. It always finds the Minimum Spanning Tree for any connected graph.

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Mr. Hoya brought 5 watermelons from his grocery store. The watermelons weighed 8 1/4 pound, 9 1/4 pound, 8 7/8 pound, 9 5/8 poun
Oksi-84 [34.3K]
First add all the watermelon weights together (to add the fourths and the eighths multiply the fourths by 2 (1/4x2=2/8) and add the numerators). Then multiply the number of people (153) by how much they each ate (1/4). Then subtract the total amount eaten (38 1/4) from the total weight (46 3/4) and compare that with 8 1/2... The left overs are actually equal to 8 1/2 pounds :)
3 0
2 years ago
If 2.5 mol of dust particles were laid end to end along the equator, how many times would they encircle the planet? The circumfe
Natalka [10]

Answer:

They encircle the planet 3.76\times 10^{11} times.

Step-by-step explanation:

Consider the provided information.

We have 2.5 mole of dust particles and the Avogadro's number is 6.022\times 10^{23}

Thus, the number of dust particles is:

2.5\times 6.022\times 10^{23}=15.055\times 10^{23}

Diameter of a dust particles is 10μm and the circumference of earth is 40,076 km.

Convert the measurement in meters.

Diameter: 10\mu m\times \frac{10^{-6}m}{\mu m} =10^{-5}m

If we line up the particles the distance they could cover is:

15.055\times 10^{23}\times 10^{-5}=15.055\times 10^{18}=1.5055\times 10^{19}

Circumference in meters:

40,076km\times \frac{1000m}{1km}=40,076,000 m

Therefore,

\frac{1.5055\times 10^{19}}{40,076,000} = 3.76\times 10^{11}

Hence, they encircle the planet 3.76\times 10^{11} times.

8 0
2 years ago
A sample with a sample proportion of 0.4 and which of the following sizes will produce the widest 95% confidence interval when e
Fed [463]

Answer:

C. 50

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

The higher the margin of error, the wider an interval is.

As the sample size increases, the margin of error decreases. If we want a widest possible interval, we should select the smallest possible confidence interval.

So the correct answer is:

C. 50

6 0
2 years ago
You have a coupon for a local craft store that is for 40% off one item. You would like to purchase a glue gun for $8.99 and a ba
Yanka [14]

Answer:

$26.06

Step-by-step explanation:

You would like to purchase a glue gun for $8.99 and a basket for $25.99. The highest-priced item is a basket for $25.99. So, the coupon will take the discount off for this item.

The new price of the basket is

\$25.99\cdot (1-0.4)=\$25.99\cdot 0.6=\$15.594

The total cost of your buying  is

\$8.99+\$15.594=\$25.584

There will be a 6% sales tax added to the price of all items. So, the end cost is

\$25.584\cdot (1+0.06)=\$25.584\cdot 1.06=\$26.05904\approx \$26.06

4 0
2 years ago
6051 was rounded to the nearest one. What is the lower bound?
shusha [124]

Answer:

6050

Step-by-step explanation:

3 0
2 years ago
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