Are there any rules when solving compound inequalities?

Mathematics

1 answer:

zimovet [89]3 years ago

7 0

Answer:

Yes bro

Step-by-step explanation:

To solve a compound inequality, first separate it into two inequalities. Determine whether the answer should be a union of sets ("or") or an intersection of sets ("and"). Then, solve both inequalities and graph.

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I forgot how to do this. Can someone tell me how?

Katyanochek1 [597]

Hey there, CrisisOnCats!

Absolute value is when any value that's inside the box, positive or negative, will always come out as positive.
For this one, you solve it as a normal equation, solving for x.
So, 8 = 5 - x
8-5 = 5-5 - x
3 = -x
x = -3
One value can be -3
To find the other value, just find any value that's equal to 8 when added or subtracted from 5, negative or positive.
We have 13 in this case.
5 - 13 is equals to -8 but since it's absolute value, it would be positive 8.
So, the answer is D

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7 0

3 years ago

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Which of the following is a solution to 4cos^2x-1=0?<br> 60°<br> 150°<br> 210°<br> 330°

Sav [38]

For have alook the photo