Answer:
17/12
Step-by-step explanation:
110*7/11 (since 4/11 have more than one)
70
70 people surveyed own only one cat :)
Answer:
√3
Step-by-step explanation:
cot²(θ) = csc²(θ) -1 . . . . . a relevant identity
= 1/sin²(θ) -1
= (1/(1/2))² -1 = 2² -1 = 3
Then ...
cot(θ) = √3 . . . . . . . . take the square root
Angles that combine to make a straight line add up to __180__ degrees.
I hope this helps! :)