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Travka [436]
3 years ago
15

Natalie sawed five boreds of equal length to make a stool. Each was 8 tenth of a meter long what is the total lenght of the boar

ds she sawed
Mathematics
1 answer:
Dmitry [639]3 years ago
6 0
One board is 31.5 inches long. all the boards together is 157.5 inches long
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A merry-go-round can hold 36 people on each 5-minute ride. How many people would have received a ride on the merry-go-round in a
BigorU [14]

Answer:

432

Step-by-step explanation:

The hour have 12 5 min (12*5=60)

So 36*12=432

3 0
2 years ago
Cho khối chóp có diện tích đáy B=3 và chiều cao h=4. Thể tích của khối chóp đã cho bằng
lyudmila [28]

Answer:

D. 4

Step-by-step explanation:

 V =\frac{1}{3}Bh=\frac{1}{3}.3.4=4

4 0
2 years ago
Based on the sample of 500 people, 42% owned cats. Calculate the test statistic. Round to two decimal places.
Tanzania [10]

Answer:

z= 3.63

z for  significance level = 0.05 is ± 1.645

Step-by-step explanation:

Here p = 42% = 0.42

n= 500

We formulate our null and alternative hypotheses as

H0: p= 0.42     against Ha : p> 0.42 One tailed test

From this we can find q which is equal to 1-p= 1-0.42 = 0.58

Taking p`= 0.5

Now using the z  test

z= p`- p/ √p(1-p)/n

Putting the values

z= 0.5- 0.42/ √0.42*0.58/500

z= 0.5- 0.42/ 0.0220

z= 3.63

For one tailed test the value of z for  significance level = 0.05 is ± 1.645

Since the calculated value does not fall in the critical region we reject our null hypothesis  and accept the alternative hypothesis that more than 42%  people owned cats.

4 0
3 years ago
4x5:):):):):):):)free
Kruka [31]

Answer:

The answer is 20

Step-by-step explanation:

Can i have brainiest

8 0
3 years ago
Read 2 more answers
You are searching online for techno music that is neither European nor Dutch. In set notation, which set of music files are you
yuradex [85]
<h2>Answer: </h2><h2>Techno ∩ (European ∩ Dutch)'</h2>

Step-by-step explanation:

According to sets theory ;

Intersection ( ∩ ) - e.g (European ∩ Dutch) represents both European and    

                                     Dutch , while (European ∩ Dutch)' represents neither

                                     European nor Dutch .

Union ( ∪ ) - e.g (European ∪ Dutch) represents either  European or Dutch .

So , Techno ∩ (European ∩ Dutch)' represents  set notation of techno musics that is neither European nor Dutch .

                                     

3 0
2 years ago
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