Give the number of rows in the truth table for the compound statement.~(p ? q) ? (q ? ~r)
A. 4
B. 8
C. 9
D. 3
Answer: B
Mathematics
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Factor by grouping.18x4 + 12x2y4 - 15x2y4 - 10y8
A. (18x2 - 5y4)(x2 + 2y4) B. (6x2 + 5y4)(3x2 - 2y4) C. (6x2 - 5y4)(3x2 + 2y4) D. (6x2 - 5y)(3x2 + 2y8)
Mathematics
A rubber ball is dropped from a height of 8 m onto a flat surface. Each time the ball hits the surface, it rebounds to 50% of its previous height. Find the total distance the ball travels.
a. 16 b. 24 c. 8 d. 32
Mathematics
Find the vertex of the parabola.f(x) = -2x2 - 12x - 23
A. (5, 3) B. (-5, -3) C. (3, 5) D. (-3, -5)
Mathematics
Solve the problem.A 5-card hand is dealt from a deck of 52 cards. What is the probability thata) none are queens?b) all are queens?
A. a) 0 b) 0.07487 B. a) 0 b) 0.65884 C. a) 0.65884 b) 0 D. a) 0.07487 b) 0
Mathematics