A quadrilateral has vertices A(-2, 12), B(-1, -1), C(10, -8), and D(9, 5). Show that it is a rhombus.
What will be an ideal response?
Midpoint of AC = midpoint of BC = (4, 2). Slope of AC=-5/3, and slope of BD= 3/5
Mathematics
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Express the number in decimal notation.7 × 10-7
A. 0.0000007 B. -700,000 C. 0.00000007 D. 0.000007
Mathematics
Solve the problem.The perimeter of a rectangle, P, is given by P = 2L + 2W, where L is its length and W is its width. What is the perimeter of a rectangle of length 20 ft and width 14 ft?
A. 136 ft B. 68 ft C. 54 ft D. 34 ft
Mathematics
Simplify. Express your answer in standard form.(3x2 - 10x + 6) - (x2 - 3x + 2) + (8x2 + 5)
A. 10x2 + 7x + 9 B. -6x2 - 13x + 13 C. 10x2 - 7x + 9 D. 10x2 - 7x + 13
Mathematics
Factor by grouping.15x2 - 20x + 12x - 16
A. (15x - 4)(x + 4) B. (15x + 4)(x - 4) C. (5x + 4)(3x - 4) D. (5x - 4)(3x + 4)
Mathematics