Find an equation for the graph.
A. y = -4 sin 
B. y = -4 cos (3x)
C. y = -4 sin (3x)
D. y = -4 cos 
Answer: A
Mathematics
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State whether the common form of the argument is valid or invalid and give a reason. p ? q
? ~q
A. Invalid, misuse of transitive reasoning B. Invalid, misuse of disjunctive reasoning C. Valid, transitive reasoning D. Valid, disjunctive reasoning
Mathematics
Approximate the number using a calculator. Round the answer to three decimal places.e-1.3
A. -0.273 B. 0.573 C. 0.273 D. -3.534
Mathematics
Perform the indicated operations.12 - (-5) ? (-9) + 9
A. -126 B. -144 C. 25 D. -24
Mathematics
Find the least common denominator.
, 
A. t(t - 3) B. t - 3 C. 81 D. t
Mathematics