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Scilla [17]
3 years ago
7

Cubes of side 3cm are stacked to form a cube of side 18 cm. Find the number of cubes used.

Mathematics
1 answer:
Shalnov [3]3 years ago
6 0
18/3=6 you do this because you assume all the cubes are the same. Also because they form a cube they are proportionate to each other.
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What is it pls help !
Nesterboy [21]

Answer:

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choli [55]

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A hypothesis test is conducted at the .05 level of significance to test whether or not the population correlation is zero. If th
finlep [7]

Answer:

Th computed value of the test statistic is 3.597

Step-by-step explanation:

The null and the alternative hypothesis is as follows:

Null Hypothesis:

\mathbf{H_o:} the population correlation coefficient is equal to zero

\mathbf{H_a:} the population correlation coefficient is not equal to zero

The test statistics for Pearson correlation coefficient is thus computed as :

t =\dfrac{r \sqrt{(n-2)}} { \sqrt{(1-(r)^2)} }

where;

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n = sample size = 25

So;

t =\dfrac{0.60 \sqrt{(25-2)}} { \sqrt{(1-(0.60)^2)} }

t =\dfrac{0.60 \sqrt{(23)}} { \sqrt{(1-0.36} }

t =\dfrac{0.60 *4.796} {0.8}

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Comparing to a critical value of t (23 degrees of freedom two-tailed value) = 2.069

Decision Rule:

Since computed value of t is greater than the critical value of t; We reject the null hypothesis and accept the alternative hypothesis.

Conclusion:

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6 0
3 years ago
Can you give me the answer? Ill give brainliest for the right answer
Serga [27]

Answer:

I believe the answer is b

Step-by-step explanation:

I might be wrong

3 0
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Read 2 more answers
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Answer:

24 dishes

Step-by-step explanation:

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6cups =6*4=24 dishes

8 0
2 years ago
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