The correct answer is option 3: m≤-15
Step-by-step explanation:
The inequalities are solved by performing operations on both sides of inequality
Given inequality is:

when an inequality is multiplied by -1 the signs of numbers on both sides are changed while the inequality operator is also reversed.
Multiplying both sides by -1 will give us:

The correct answer is option 3: m≤-15
Keywords: Inequalities, Operations on inequalitites
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Answer:
First triangle x=9
Second triangle x=20
Step-by-step explanation:
Using Pythagorean theorem
40^2+x=41^2
1600+x^2=1681
-1600 -1600
x^2=81
To find x we do the opposite of powers and find the squared
x=9
Second triangle
21^2+x^2=29^2
441+x^2=841
-441 -441
x^2=400
x=20
Step-by-step explanation:
asleep percentage :- ( 8h /24h ) 100 % = 33.33%
awake percentage :- ( 16h / 24h ) 100 % = 66.67%