What value of x will make the function x(4 - x) a maximum?

The histogram above represents the number of candidates that sat for Mathematics examination in a school. How many candidate scored more than 50 marks?

The cumulative frequency curve above shows the distribution of the scores of 50 students in an examination. Find the 36th percentile scores?

Subtract 16418\(_9\) from 18630\(_9\).

Solve \(5^{2(x - 1)} \times 5^{x + 1} = 0.04\)