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Mathematics Past Questions and Answers

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Mathematics Questions

Question 3881:

Make u the subject of formula, E = \(\frac{m}{2g}\)(v² - u²)

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A U = \(\sqrt{v^2 - \frac{2Eg}{m}}\)
B U = \(\sqrt{\frac{v^2}{m} - \frac{2Eg}{4}}\)
C U = \(\sqrt{v- \frac{2Eg}{m}}\)
D U = \(\sqrt{\frac{2v^2Eg}{m}}\)

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Question 3882:

F x varies inversely as y and y varies directly as Z, what is the relationship between x and z?

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A X \(\alpha\) z
B X \(\alpha \frac{1}{z}\)
C X \(\alpha z^2\)
D X \(\alpha \frac{1}{z^2}\0

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Question 3883:

Find the gradient of the line joining the points (2, -3) and 2, 5)

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A 9
B 1
C 2
D Undefined

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Question 3884:

If (x - a) is a factor pf bx - ax + x², find the other factor.

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A (x + b)
B (x - b)
C (a + b)
D (a - b)

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Question 3885:

\(\begin{array}{c|c}height & 2 & 3 & 4 & 5 & 6 \\ \hline frequency & 2 & 4 & 5 & 3 & 1
\end{array}\)
The table shows the distribution of the height of plants in a nursery. Calculate the mean height of the plants.

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A 3.8
B 3.0
C 2.8
D 2.3

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