Find the probability that a number selected at random from 21 to 34 is a multiple of 3

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 sin58°=cosp° sin ⁡ 58 ° = cos ⁡ p ° , find p.

Make q the subject of the formula in the equation mna2−pqb2=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 √2+√3√2−√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 ⊗ ⊗ is defined by m⊗n=mn+m−n m ⊗ n = m n + m − n on the set of real numbers, for all m, n ∈ ∈ R. Find the value of 3 ⊗ ⊗ (2 ⊗ ⊗ 4).