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Write an expression for the perimeter of the pentagon. Write an expression for the perimeter of the square. Write an expression for the perimeter of the rectangle. 2x+2 4x-1 4x-1 2x+2 Write an expression for the perimeter of the triangle. 5x2-7x+3 Hint: Press Shift-6 to write exponents. 2x2+3x-5 x2-3 Which expression is equivalent to -(x + 7)? -x + 7 x - 7 -x - 7 x + 7 Which expression is not equivalent to -(x - 4)? -x - 4 -x + 4 4 - x -x - (-4) Which expression is equivalent to 3x - (2x + 1)? 5x - 1 x - 1 x + 1 -6x2 + 3x Which expression is not equivalent to 3y - 5(y + 1)? 2y - 5 -2y - 5 -5 - 2y 3y - 5y - 5 I. -53 = -(53) Which of the following are true? I and II II and III I only II. (-5)3 = -53 III only I, II, and III II only III. -54 = (-5)4 I. -22 = (-2)2 Which of the following are true? I and II II and III I only II. -23 = -(23) III only I, II, and III II only III. -24 = -(2)4 I. -76 = (-7)6 Which of the following are true? I and II II and III I only II. -75 = (-7)5 III only I, II, and III II only III. -74 = (-7)4 What is the opposite of the expression 3x - 5? What is the opposite of the expression -7x + 2? What is the opposite of the expression -8x - 4? What is the opposite of the expression 2x +11 ? |