anonymous
  • anonymous
-3x < -6 or x + 5 < -2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
-3x < -6 or x + 5 \[\le\] -2***************************
anonymous
  • anonymous
again?
anonymous
  • anonymous
yes im so confused. and frustrated

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mysesshou
  • mysesshou
i dont remember what the OR means for these. \[-3x < -6\] or \[x + 5 \le -2 \]
anonymous
  • anonymous
im not sure either i guess solve both?
anonymous
  • anonymous
In algebra, disjunction refers to the combining of math sentences with the word "OR." Some refer to this as a union of two or more sentences.
mysesshou
  • mysesshou
I guess it is more of the same. So for the first one, what would you do first?
anonymous
  • anonymous
divide -6 by -3
mysesshou
  • mysesshou
Yes, and also flip the symbol, since dividing by negative
mysesshou
  • mysesshou
which is ?
anonymous
  • anonymous
x>2
mysesshou
  • mysesshou
yes. ok, next one.
mysesshou
  • mysesshou
to isolate the x, you should do what?
anonymous
  • anonymous
x\[\le\]-7?
mysesshou
  • mysesshou
Yes, \[x \le -7\] by subtracting the five each side
anonymous
  • anonymous
then graph
mysesshou
  • mysesshou
So, \[x \le -7\] and x>2 Let's flip the one with the -7 in it to give \[-7 \ge x\]
mysesshou
  • mysesshou
hang on. let me check that
anonymous
  • anonymous
ok
mysesshou
  • mysesshou
Ok, this one doesn't combine. x≤−7 and x>2
anonymous
  • anonymous
how would i graph this?
mysesshou
  • mysesshou
So, filled in circle at -7, and open circle at 2. Then since x is smaller than -7, draw arrow to the left, for the values less than -7. also draw arrow to the right from the 2, showing values above 2
anonymous
  • anonymous
thank you :))
mysesshou
  • mysesshou
welcome :)

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