Use a truth table to determine whether the argument is valid.~q ? ~p
~q
A. Valid
B. Invalid
Answer: A
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Provide an appropriate response.A student wishes to find the integral 
of a function that has the property limit 
Why can this not be done?
What will be an ideal response?
Solve the problem.During the first five months of the year, Len earned commissions of $3850, $2790, $2450, $2360, and $3580. If Len must have average monthly earnings of at least $3140 in order to qualify for retirement benefits, what must he earn in the sixth month in order to qualify for benefits?
A. at least $3810 B. at least $3006 C. at least $3028 D. at least $3140
Answer the question about the given function.Given the function f(x) = -5x2 + 10x + 7, list the y-intercept, if there is one, of the graph of f.
A. 7 B. -3 C. -8 D. 12
Use the trigonometric substitution to rewrite the algebraic expression as a trigonometric function of ?, where 
.
?
A. 25 tan ? B. 5 tan ? C. 25 sec ? D. 6 sec ? E. - 5 sec ?