The premises A, B, and C are followed by a conclusion. Check whether the resulting argument is valid or invalid.A. All people who laugh have fun.B. All people who have fun are content.C. Some people who stay up all night are content.All people who laugh are content.
A. Valid
B. Invalid
Answer: A
Mathematics
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A. 
B. 
C. 15
D. 
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Graph the polar equation.? = 
A. 
B. 
C. 
D. 
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Identify the interval where f is increasing or decreasing, as indicated. Express your answer in interval notation.f(x) = (x + 1)2 + 1; decreasing
A. [0, 1] B. [-1, ?) C. (-?, -1] D. [-1, 0]
Mathematics