The weight of a day-old chick was measured to be 0.21g. If the actual weight of the chick is 0.18g, what was the percentage error in the measurement?

The angle of elevation of the top of a tree from a point on the ground 60m away from the foot of the tree is 78°. Find the height of the tree correct to the ...

Given \( \sin 58^\circ = \cos p^\circ \), find p.

Make q the subject of the formula in the equation \(\frac{mn}{a^2} - \frac{pq}{b^2} = 1\)

In a class of 50 students, 40 students offered Physics and 30 offered Biology. How many offered both Physics and Biology?

Find the length of the chord |AB| in the diagram shown above.

Rationalize \( \frac{\sqrt{2}+\sqrt{3}}{\sqrt{2}-\sqrt{3}} \)

Age in years 7 8 9 10 11 No of pupils 4 13 30 44 9 The table above shows the number of pupils in a class with respect to their ages. If a pie chart is constr...

A binary operation \( \otimes \) is defined by \( m \otimes n = mn + m - n \) on the set of real numbers, for all m, n \( \in \) R. Find the value of \( 3 \o...