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timurjin [86]
3 years ago
12

−2n < −12 how can i slove this?

Mathematics
2 answers:
Ket [755]3 years ago
8 0

Answer:

n>6

Step-by-step explanation:

you need to find the n variable by dividing

vampirchik [111]3 years ago
8 0

Answer:

n > 6

Step-by-step explanation:

You have to isolate n so you have to divide -2 by both sides.

  -2n < -12

  /-2      /-2

it's n > 6

You had to divide by a negative, which is why the symbol flipped around.

Hope this helps!!

-Ketifa

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3 0
2 years ago
A study was conducted to determine whether magnets were effective in treating pain. The values represent measurements of pain us
amm1812

Answer:

Given:

Sham: n= 20,     x=0.44,   s=1.24,

Magnet:n= 20,  x =0.49,   s= 0.95

For Sham:

Sample size, n = 20

Sample mean = 0.44

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For Magnet:

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Sample mean = 0.49

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The null and alternative hypotheses:

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Magnet: degrees of freedom = n - 1 = 20 - 1 = 19

The critical values:

[Za/2, df1, df2)], [(1 - Za/2), df1, df2]

f[0.05/2, 19, 19], f[(1 - 0.05/2), 19, 19]

f[0.025, 19, 19], f[0.975, 19, 19]

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c) Conclusion:

Since the critical values of test statistic is between (0.3958 < 1.7037 < 2.526), we fail to reject null hypothesis H0.

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2 years ago
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