Rounding 8,469 to one decimal place
1 answer:
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Answer:
-5x - 15 > 10 + 20x
-5x - 20x > 10+15
-25x > 25
-x > 25/25
-x > 1
x < -1
interval notation: ]- infinity; -1]
Answer:
The answer to your question is: the first option - 9/
Step-by-step explanation:
Process
cosФ = adjacent side / hypotenuse
-1/9 = adjacent side / hypotenuse
adjacent side = -1 hypotenuse = 9
c² = a² + b²
b² = c² - a²
b² = 81 - 1
b = b = opposite side
But b is negative because we are in the third quadrant.
b = -
Finally csc Ф = hypotenuse / opposite side
csc Ф = - 9 /