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Two chords, AB and CD, intersect in a circle at E. if _AE= 6cm, BE = 8 cm, and CE = 3(DE), what is the length of CD?
The lengths of two opposite sides of a square are doubled, and the lengths of the other two sides are each increased by 4 cm. The area of the resulting rectangle is 128 cm ^2 greater than that of the original square. Find the length of a side of that square.
Your weekly salary is modeled after a line equation: s = 50t + 200. Calculate your annual salary based on the equation above. Explain the physical meaning of the value 50 and 200.
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