The argument has a true conclusion. Identify the argument as valid or invalid.All dogs have fur.A cat is not a dog.

A. Invalid
B. Valid


Answer: A

Mathematics

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Graph the rational function. Include the graphs and equations of the asymptotes.f(x) = 

A. asymptote: y = 0

B. asymptotes: x = 2, x = -2

C. asymptote: y = 0

D. asymptote: y = 1

Mathematics

Find the angle between u and v in radians.u = -7i + 7j - 4k, v = 8i + 4j - 4k

A. -0.11 B. 1.57 C. 1.69 D. 1.63

Mathematics

Find the center of mass of a thin plate covering the given region with the given density function.The region between the curve y =  and the x-axis from x = 1 to x = 9, with density ?(x) = 

A.  = 5,  = 
B.  = 5,  = 
C.  = 6,  = 
D.  = 5,  = 

Mathematics

Use the given information to find the exact value of the trigonometric function.cos ? = - , sin ? > 0Find cos .

A. - 
B. - 
C.
D.

Mathematics