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2 years ago

HELP! I'll give brainliest.

Mathematics

1 answer:

gavmur [86]2 years ago

6 0

Answer:

-4 < x ≤ -3

Step-by-step explanation:

The compound inequality needs to be separated into its two parts in order to obtain a solution.

We can do a little preliminary work to make the solutions easier.

2x +6 ≤ x +3 < 3x +11 . . . . . given

x +3 ≤ 0 < 2x +8 . . . . . . . . subtract x+3

x +3 ≤ 0

x ≤ -3 . . . . . . . subtract 3

<h3>right side</h3>

0 < 2x +8

0 < x +4 . . . . divide by 2

-4 < x . . . . . . subtract 4

<h3>solution</h3>

Now, we can rearrange these back into a compound inequality.

-4 < x ≤ -3

_____

The graphing calculator shows the same solution.

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Answer:

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Step-by-step explanation:

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3 years ago

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2 years ago

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Answer:

the minimum sample size n = 11.03

Step-by-step explanation:

Given that:

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level of significance ∝ = 0.01

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