Mathematics Past Questions and Answers

If \(\begin{vmatrix} 2 & -5 & 3 \\ x & 1 & 4 \\ 0 & 3 & 2 \end{vmatrix} = 132\) find the value of x.

<table class='tbn'><tbody><tr><td> Marks </td><td> 1 </td><td> 2 </td><td> 3 </td><td> 4 </td><td> 5 </td></tr><tr><td> Frequency </td><td> 2y - 2 </td><td> y - 1 </td><td> 3y - 4 </td><td> 3 - y </td><td> 6 - 2y </td></tr></tbody></table><br/><br/><br/>The table above is the distribution of data with mean equals to 3. Find the value of y.

In the circle above, with centre O and radius 7 cm. Find the length of the arc AB, when < AOB = 57°.

Find the values of x for which<br/>\(\frac {x+2}{4}\) - \(\frac{2x - 3}{3}\) < 4

A trader realises 10x - x\(^2\) Naira profit from the sale of x bags of corn. How many bags will give him the maximum profit?