Using the properties of inequalities, write down the inequality that you will get if you: add the number –5; 2.7; 7; to both sid es of the inequality 18>−7. subtract the number 2; 12; −5; from both sides of the inequality 5>−3. multiply both sides of the inequality −9 −6 by the number 3; −3; −1.
2 answers:
Answer:
See below
Step-by-step explanation:
1..........................
Add –5; 2.7; 7 to both sides
18 -5 > -7 - 5 ⇒ 13 > -12 18 + 2.7 > - 7 + 2.7 ⇒ 20.7 > - 43 18 + 7 > -7 + 7 ⇒ 25 > 0 2..........................
Subtract 2; 12; -5 from both sides
5 - 2 > -3 -2 ⇒ 3 > - 5 5 - 12 > -3 - 12 ⇒ -7 > -15 5 -(-5) > -3 - (-5) ⇒ 10 > 2 3..........................
Multiply both sides by 3; −3; −1
<em>When multiplying both sides of inequality by positive number the sign stays as is, when multiplying both sides of inequality by negative number the sign reverses</em>
-9 *3 < -6*3 ⇒ -27 < - 18 -9*(-3) > -6*(-3) ⇒ 27 > 18 -9*(-1) > -6*(-1) ⇒ 9 > 6
Using the properties of inequalities
if you add −5, to both sides of the inequality 18>−7.
the inequality is 13 > -12
Do that with all of them
if you add 2.7, to both sides of the inequality 18>−7. the inequality is 20.7 > -4.3
if you add 7, to both sides of the inequality 18>−7. the inequality is 25 > 0
Hope this helps! Sorry thats not all of them. -Viki
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Answer:
Step-by-step explanation:
A” (-2,2)
B” (-1,-2)
C” (-4,-4)
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Answer: probly d
Step-by-step explanation:
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