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4251

The expression \(\frac{5x + 3}{6x (x + 1)}\) will be undefined when x equals

A. {0, 1}
B. {0, -1}
C. {-3, -11}
D. {-3, 0}

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4252

A man is five times as old as his son. In four years' time, the product of their ages would be 340. If the son's age is y, express the product of their ages in terms of y.

A. 5y\(^2 - 16y - 380 = 0\)
B. 5y\(^2 - 24y - 380 = 0\)
C. 5y\(^2 - 16y - 330 = 0\)
D. 5y\(^2 + 24y - 324 = 0\)

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4253

Simplify; \(\frac{a}{b} - \frac{b}{a} - \frac{c}{b}\)

A. \(\frac{a - b + c}{ab}\)
B. \(\frac{ab - bc - ac}{ab}\)
C. \(\frac{a^2 - b^2 + ac}{ab}\)
D. \(\frac{a^2 - b^2 - ac}{ab}\)

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4254

In the diagram, XYZ is an equilateral triangle of side 6cm and Y is the midpoint of \(\overline{XY}\). Find tan (< XZT)

A. \(\frac{1}{\sqrt{3}}\)
B. \(\frac{\sqrt{3}}{2}\)
C. \(\sqrt{3}\)
D. \(\frac{1}{2}\)

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4255

A fence 2.4 m tall, is 10m away from a tree of height 16m. Calculate the angle of elevation of the top of the tree from the top of the fence.

A. 76.11\(^o\)
B. 53.67\(^o\)
C. 52.40\(^o\)
D. 51.32\(^o\)

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