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Jagger
Mathematics
20 March, 05:43
Is (-4,2) a solution of 4x+5y≤-7
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Tamia Clements
20 March, 05:51
0
No
Step-by-step explanation:
Substitute - 4 for x and 2 for y in 4x+5y≤-7. Is the resulting inequality true or not?
4 (-4) + 5 (2) ≤ - 7
or
-16 + 10 ≤ - 7, or
-6 ≤ - 7, which is False. No, (-4, 2) is not a solution of 4x + 5y ≤ - 7.
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