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3 years ago

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:

95% of confidence interval for the Population

( 6.1386 , 6.8614)

Step-by-step explanation:

Step( i ):-

Given random sample size 'n' =85

Mean of the sample size x⁻ = 6.5 years

Standard deviation of Population = 1.7 years

Level of significance = 0.95 or 0.05

Step(ii):-

95% of confidence interval for the Population is determined by

$(x^{-} - Z_{0.05} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.05} \frac{S.D}{\sqrt{n} })$

$(6.5 - 1.96\frac{1.7}{\sqrt{85} } , 6.5 + 1.96 \frac{1.7}{\sqrt{85} })$

( 6.5 - 0.3614 , 6.5 + 0.3614 )

( 6.1386 , 6.8614)

Conclusion:-

95% of confidence interval for the Population

( 6.1386 , 6.8614)

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