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NemiM [27]
3 years ago
10

Drag each value to the correct location on the table. Identify whether the given numbers are perfect squares, perfect cubes, or

neither. 8, 9, 21, 27, 1331, 1332, 100, 1,000, 126, 125, 25, 81.
Mathematics
2 answers:
Maru [420]3 years ago
7 0

9- square

100- square

25- square

81- square

8- cube

27- cube

1331- cube

1000- cube

21- neither

1332- neither

126- neither


eduard3 years ago
6 0

Answer:

Cubes 8, 27, 1331, 1000, 125 Squares 9, 100, 25, 81 and neither are 21, 1332, 126.

Step-by-step explanation:

The given numbers are 8, 9, 21, 27, 1331, 1332, 100, 1000, 126, 125, 25, 81 and we have to find the perfect squares, perfect cubes or neither from these numbers.

8=2^{3}

9=3^{2}

21 is neither square nor cube.

27 = 3³

1332 is niether

1331 = 11³

100 = 10²

1000 = 10³

126 neither

125 = 5³

25 = 5²

81 = 9²

So cubes are 8, 27, 1331, 1000, 125 and squares are 9, 100, 25, 81.

Neither are 21, 1332, 126.

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A local car dealer claims that 25% of all cars in San Francisco are blue. You take a random sample of 600 cars in San Francisco
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Answer:

No, we can't reject the dealer's claim with a significance level of 0.05.

Step-by-step explanation:

We are given that a local car dealer claims that 25% of all cars in San Francisco are blue.

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<u><em>Let p = proportion of all cars in San Francisco who are blue</em></u>

SO, Null Hypothesis, H_0 : p = 25%   {means that 25% of all cars in San Francisco are blue}

Alternate Hypothesis, H_A : p \neq 25%   {means that % of all cars in San Francisco who are blue is different from 25%}

The test statistics that will be used here is <u>One-sample z proportion</u> <u>statistics</u>;

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So, <u><em>test statistics</em></u>  =  \frac{0.235-0.25}{{\sqrt{\frac{0.235(1-0.235)}{600} } } } }

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Therefore, we conclude that 25% of all cars in San Francisco are blue which means the dealer's claim was correct.

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