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2 years ago

What are the two correct answers?

Mathematics

1 answer:

Darya [45]2 years ago

4 0

Answer:

y ≥ 1 or y ≤ -2.4

Explanation:

| 10y + 7 | ≥ 17

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$\sf {Apply\:absolute\:rule}:\quad \mathrm{If}\:|u|\:\ge \:a,\:a\: > \:0\:\mathrm{then}\:u\:\le \:-a\:\quad \mathrm{or}\quad \:u\:\ge \:a$

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10y + 7 ≤ -17

10y ≤ -17 - 7

10y ≤ -24

y ≤ -2.4

-------------------------

10y + 7 ≥ 17

10y ≥ 10

y ≥ 1

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