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Vsevolod [243]
3 years ago
10

IDENTIFY THE PROPERTY WHICH JUSTIFIES THE FOLLOWING CONCLUSION

Mathematics
1 answer:
alexgriva [62]3 years ago
6 0

Answer:

Step-by-step explanation:

17) B. They are adding 2 to both sides.

18) A. A segment is equal to itself.

19) D. They are multiplying both sides by 2.

20) C. They are simply swapping the left and right hand sides of the equation

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If 95% and 98% confidence intervals were calculated from the same sample data in order to estimate the true cost of an appliance
damaskus [11]

Answer:

D) The z-statistics would be different.

Step-by-step explanation:

Confidence Interval can be calculated using M±ME where

  • M is the sample mean
  • ME is the margin of error from the mean

An margin of error (ME) from the mean can be calculated using the formula

ME=\frac{z*s}{\sqrt{N} } where

  • z is the corresponding z-statistic in the given confidence level
  • s is the population standard deviation
  • N is the sample size

If 95% and 98% confidence intervals were calculated from the same sample data, then M, s and N are same.

\frac{s}{\sqrt{N} } is called standard error. Since s and N are same the standard errors would also be same.

But, two tailed z-statistic for 95% confidence level is ≈1.96 where for 98% it is ≈2.33

8 0
4 years ago
How should Quentin classify triangles 6, 7, and 8
Inessa05 [86]
He should classifi them as right triangles I think...
8 0
3 years ago
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What is the volume of the cone? 24π cubic units 32π cubic units 48π cubic units 64π cubic units
irina [24]

Answer: Answer = B 32 cubic units

Step-by-step explanation:

Answer is B on Edge

5 0
3 years ago
Read 2 more answers
E = cos20º + cos40º + cos60º + … cos160º + cos180º
r-ruslan [8.4K]

Answer:

C) – 1

Step-by-step explanation:

E = cos20º + cos40º + cos60º +cos80° + cos 100°+cos120° +cos140° +cos160º + cos180º

E= 0.9 + 0.76 + 0.5+0.17+(-0.17)+(-0.5)+(-0.76) + ( – 0.9 ) + (– 1 )

E= 0.9 + 0.76 + 0.5 +0.17 - 0.17 - 0.5 -0.76 – 0.9 – 1

E= – 1

So ; equal – 1

I hope I helped you^_^

8 0
3 years ago
Nasira's father bought a backpack for
Lilit [14]

Answer:

$41.39

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 44.99 × 8/100

Discount = 44.99 x 0.08

You save = $3.60

4 0
3 years ago
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