Determine whether the argument is valid or invalid by using a truth table.p ? ~q
? p ? q
A. The argument is valid.
B. The argument is invalid.
Answer: B
Mathematics
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Assume you have a digraph with 5 vertices (A, B, C, D, and E) and 9 arcs. B is incident from D, E, and A; C is incident to E and A and incident from D; E is incident to D and incident from A.How many cycles are there in the digraph that start and end at B?
A. 1 B. 2 C. 0 D. 3 E. none of these
Mathematics
Add or subtract as indicated. Write the answer in lowest terms.9 - 
A. 
B. 
C. 
D. 
Mathematics
Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.2x3y5 + 4x2y5 - 16xy5
A. y5(2x2 + 4x)(x - 4) B. 2xy5(x - 2)(x + 4) C. prime D. 2xy5(x + 2)(x - 4)
Mathematics
The angles are complementary angles. Find the measure of each angle.
A. 60° and 120° B. 15° and 30° C. 27° and 63° D. 17° and 34°
Mathematics