Use an Euler diagram to determine whether the argument is valid or invalid.All dogs have fur.All cats have fur. Therefore, a cat is not a dog.
A. valid
B. invalid
Answer: B
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Perform the addition or subtraction.(3x2 - 9x - 1) - 
A. -5x2 - 14x - 3 B. -5x2 - 4x - 3 C. -5x2 - 14x + 1 D. -5x2 - 4x + 1
List the symmetries of the given function, if there are any. Otherwise, state "No symmetry".f(x) = 
+ 2
A. x-axis B. Origin C. y-axis D. No symmetry
Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.9x2 - 6x + 1 = 0
A. Two different imaginary-number solutions B. Two different real-number solutions C. One real solution
Write the first three terms in the binomial expansion, expressing the result in simplified form.(x - 3)17
A. x17 - 51x16 + 1224x15 B. x17 + 51x16 - 1224x15 C. x17 - 51x16 - 1224x15 D. x17 + 51x16 + 1224x15