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Nuetrik [128]
3 years ago
15

Is x = 9 in the solution set of the inequality x + 14 < 20 Yes or no

Mathematics
1 answer:
notsponge [240]3 years ago
7 0

Answer: No

Step-by-step explanation:

Data: x+14<20

x=9? Is what your trying to find

<u>Step one, Isolate x by subtracting 14 on both sides</u>

X+14-14<20-14=X=6

Reason: Since you are trying to find if x=9, you have to isolate it. The way to do that is to get rid of +14 by subtracting it by 14. However, since what you do to one side you do to the other, you subtract +20 by 14 to get 6.

Since x=6 isn't x=9, the answer is No

Answer: No

I hope this helps!

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Answer:

Option D

Step-by-step explanation:

Whenever we take a square root of a number the ± sign is with it like here in the question

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And then x = ±4.47 which means x has two values one is +4.47 and the other is -4.47 so Option D is our answer.

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3 years ago
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Step-by-step explanation:

3 0
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Answer:

x=.3

Step-by-step explanation:

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4 0
3 years ago
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