Answer:
cot∅ = (-2√30)/7.
Step-by-step explanation:
Given the value of csc∅ = -13/7 and ∅ is in quad III.
We know y = r sin∅ and r > 0. So csc∅ = r/y = -13/7 = 13/(-7).
It means y = -7, r = 13.
We know x² + y² = r².
x² = r² - y²
x² = (13)² - (-7)² = 169 - 49 = 120.
x = √120 = 2√30.
we know cot∅ = x/y = (2√30)/(-7) = (-2√30)/7.
Hence, cot∅ = (-2√30)/7.
Answer:
the answer is 32cm squared
Step-by-step explanation:
You have to see which numbers may qualify for the given numbers at the top so it would not be an answer but it is closest Or B
Answer:
75
Step-by-step explanation:
because if you minus 155 and 80 then add 10 because its a trianagle s so you have to use the polymerson method so you get 85
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