Determine the validity of the argument.Some winter days are cold.Today, it is cold.Therefore it is winter.
A. Not valid
B. Valid
Answer: A
Mathematics
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Rewrite as a base to a power, if possible.(5x + 1)7 ÷ (5x + 1)5
A. (5x + 1)12 B. (5x + 1)2 C. (5x)2 + 1 D. Cannot be simplified
Mathematics
Write the system of equations that corresponds to the augmented matrix.
A. 
B. 
C. 
D. 
Mathematics
Use a calculator to approximate the logarithm to four decimal places.log 0.00237
A. -2.6253 B. -6.0449 C. -2.6440 D. -2.6073
Mathematics
Solve the minimization problem by using the simplex method to solve the dual problem.Minimize 4x1 + 5x2subject to 5x1 + 4x2 ? 20 4x1 + x2 ? 12 x1 + 3x2 ? 9and x1 ? 0, x2 ? 0
A. Minimum = 
when x1 = 
and x2 = 
B. Minimum = 
when x1 = 
and x2 = 
C. Minimum = 
when x1 = 2 and x2 = 
D. Minimum = 
when x1 = 
and x2 = 
Mathematics