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Savatey [412]
3 years ago
5

Which of these figures has rotational symmetry?

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
6 0

Answer:

I would say D

Step-by-step explanation:

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A random sample of 85 group leaders, supervisors, and similar personnel revealed that a person spent an average 6.5 years on the
strojnjashka [21]

Answer:

<em>95% of confidence interval for the Population</em>

<em>( 6.1386 , 6.8614)</em>

Step-by-step explanation:

<u><em>Step( i ):-</em></u>

<em>Given random sample size 'n' =85</em>

<em>Mean of the sample size x⁻ = 6.5 years</em>

<em>Standard deviation of Population = 1.7 years</em>

<em>Level of significance = 0.95 or 0.05</em>

<u><em>Step(ii):-</em></u>

<em>95% of confidence interval for the Population is determined by</em>

<em></em>(x^{-} - Z_{0.05} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.05} \frac{S.D}{\sqrt{n} })<em></em>

<em></em>(6.5 - 1.96\frac{1.7}{\sqrt{85} } , 6.5 + 1.96 \frac{1.7}{\sqrt{85} })<em></em>

<em>( 6.5 - 0.3614 , 6.5 + 0.3614 )</em>

<em>( 6.1386 , 6.8614)</em>

<u><em>Conclusion</em></u><em>:-</em>

<em>95% of confidence interval for the Population</em>

<em>( 6.1386 , 6.8614)</em>

8 0
3 years ago
84 times 0.24 using area model
Damm [24]
20.16 hopefully it’s right
6 0
3 years ago
Which number would be classified as an integer on the Venn diagram?
victus00 [196]

Integers involve with negative, so D isn't the correct answer the correct answer will be A.

7 0
3 years ago
Please help and show all work!
Soloha48 [4]
2 is Reflexive property
4 is (I don't remember the specific property of this)
3 0
3 years ago
When two numbers are multiplied together, the result is 128.
fomenos

Answer:

32 and 4

Step-by-step explanation:

128=2^7

(8xa)xb=128

axb=2^4=16

(8x4)x4=128

3 0
2 years ago
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