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ACCUPLACER® Module #2 - QAS Worksheet #3 - Key 1
Module #2 Worksheet #3 1. D: The first field has an area of 1000 square feet, so the length of one side is 1000 10 10. Since, there are four sides to a square, the total perimeter is 40 10. The second square has an area of 10 square feet, so the length of one side is 10 and the total perimeter is 4 10 . Adding these together gives: 40 10 4 10 (40 4) 10 2. C: If log10x = 2, then 102 = x, which equals 100. 3. C: The (3x + 1) can be factored out to get (2x - 5) (3x + 1). 4. A: Check each value, but it is easiest to use the quadratic formula, 2 ( 2) 4(1)(2) 1 2 The only one of these that appears as an answer choice is 1 5. B: The y coordinate of every point in the graph of y = x2 + 2 has a vertex at (0, 2) on the x-axis. The circle with a center at (0, 1) also lies on the x-axis. With a radius of 1, the circle touches the parabola at one point. The vertex of the parabola (0, 2) NAME: ___KEY___________________ 44 10 feet. 2 12 2 2 3 2 1 1 3 x 3. 2