You are graphing rectangle A, B, C, and D in the coordinate plane. The following are three of the vertices of the rectangle: A(-
7, -7.5), B(-3,-7.5), and C(-3, 2.5). What are the coordinates of point D? (image above)
1 answer:
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Answer: A
Step-by-step explanation:
3x² - 10x + 5 = 0
a = 3 b = -10 c = 5
Δ = b²- 4ac = 100 - 4.3.5 = 40 > 0 => have 2 solutions
=> x = or x =