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Eva8 [605]
3 years ago
6

X + 5 < –4 Solve for x. Answer must be simplified.

Mathematics
2 answers:
Rudik [331]3 years ago
5 0

Answer:

9

Step-by-step explanation:

x=-4-5

x=9

I hope i help

Monica [59]3 years ago
3 0

Answer:

x < -9

Step-by-step explanation:

Hi there,

To isolate the variable x, you do the same steps like solving a regular equation.

x + 5 < -4      ← subtract 5 from both sides to make x by itself

x < -9            ← final answer (already in simplest form)

Hope this explanation helps. Cheers.

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Since it is observed that I z I = 3.464 > 1.96 it is concluded that the null hypothesis is rejected.

Therefore we reject John's claim.

Here:

we can use 1 sample proportion test to check the claim of John

H₀ : p₀ = 0.4

H₁ : p₀ ≠ 0.4

Test statistic is

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Let X be the random variable denoting the number of heads.

Now p = X/n

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since it is observed that I z I = 3.464 > 1.96 it is concluded that the null hypothesis is rejected.

Therefore we reject John's claim.

Learn more about Null hypothesis here:

brainly.com/question/15980493

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