State precisely (but concisely) what it means for a form of argument to be valid.
What will be an ideal response?
Sample answers:
For a form of argument to be valid means that no matter what statements are substituted for its
statement variables, if the resulting premises are all true, then the conclusion is also true.
Or: For a form of argument to be valid means that no matter what statements are substituted for its
statement variables, it is impossible for all the premises to be true at the same time that the conclusion
is false.
Or: For a form of argument to be valid means that no matter what statements are substituted for its
statement variables, it is impossible for conclusion to be false if all the premises are true.
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Solve the problem.A corporation's bank account has $9684 in it when the treasurer writes checks for $571, $5981, and $3618. Then deposits of $3292 and $3750 are made. How much is in the account? Is it overdrawn?
A. $12,812, no B. -$12,812, yes C. $6556, no D. $10,174, no
Determine if the series defined by the formula converges or diverges.a1 = 4, an+1 = 
an
A. Diverges B. Converges
Use the accompanying graph of y = f(x) to sketch the graph of the indicated equation.y = - 3f(x + 5) + 4
A. 
B. 
C. 
D. 
Find the exact value of the indicated trigonometric function of ?, if ? is an angle in standard position whose terminal side contains the given point.
; Find cos ?.
A. 
B. 
C. 
D. 