chunkymonkey090
22.12.2019 •
Mathematics
Which inequality is equivalent to −≥13 - r ≥ 13 ?
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Ответ:
Step-by-step explanation:
13 - r ≥ 13 subtract 13 from both sides
13 - 13 - r ≥ 13 - 13
-r ≥ 0 change the signs
r ≤ 0
Ответ:
x= 6,7
Step-by-step explanation:
Subtract 11x and 7 on both sides
Reverse FOIL to find polynomial
It'll equal (x-6)(x-7)
Solve for x
x=6 and x=7