question:What is a counterexample to this claim? All quadrilaterals are parallelograms. A. a rectangle B. a rhombus C. a square D. a trapezoid

question:Statement: Jose wakes up early if and only if he is going for a bike ride. Which choice is the contrapositive of the statement? A. Jose isn't going for a bike ride if and only if he doesn't wake up early. B. Jose doesn't wake up early if and only if he isn't going for a bike ride. C. Jose doesn't wake up early if and only if he is going for a bike ride. D. Jose isn't going for a bike ride if and only if he wakes up early.

question:Which statement is equivalent to ~p? p: Even numbers are divisible by 2. A. Odd numbers are divisible by 2. B. Numbers that are divisible by 2 are not even. C. Numbers that are not divisible by 2 are even. D. Even numbers are not divisible by 2.

question:Chess, medieval names to futuristic names, give 2D geometrical shape for piece than medieval chess shapes of pieces Pawn - Soldier (Triangle) Rook - ? (Hexagon) Knight - Champion (?) Bishop - Advisor (?) Queen - Commander (Hexagram) King - Emperor (Pentagram)