6. x=9
7. x=-36
8. x=-5
9. -8
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1. x less than or equal to -36
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Answer:
2√2 / 3 (first answer choice)
Step-by-step explanation:
If tan Ф < 0, then Ф must be in either Quadrant II or Quadrant IV.
If sin Ф = +1/3, then Ф (for this problem) is in Quadrant II.
Remembering that sin Ф = opp / hyp = 1 / 3, we use the Pythagorean Theorem to find the adj side:
adj² + 1² = 3², or
adj² + 1 = 9, or adj² = 8. Since Ф is in Quadrant II, adj is negative.
The value of cos Ф = adj / hyp = √8 / 3 = 2√2 / 3
Answer:
Both sides are equal so there are infinitely many solutions.
Step-by-step explanation:
Answer:
y= -31
Step-by-step explanation:
8.5(-4)= -34
-34+3= -31
