Find the product of 0.0409 and 0.0021 leaving your answer in the standard form

P naira invested for 4 years at r % simple interest per annum  yield 0.36P naira interest. Find the value of r

A trader bought 100 tubers of yam at 5 for N350.00. She sold them in set of 4 for N290.00. Find her gain percent

Simplify $\frac{\tfrac{1}{x}+\tfrac{1}{y}}{x+y}$

Given that x = 2 and $y=-\frac{1}{4}$, evaluate $\frac{{{x}^{2}}y-2xy}{5}$

If 4y is greater than the sum of y and 3x, by how much is y greater than x

Simplify $\frac{2{{x}^{2}}-5x-12}{4{{x}^{2}}-9}$

POR is a sector of a circle centre O, radius 4cm, if $\angle PQR={{30}^{{}^\circ }}$. Find, correct to 3 significant figures, the area of sector POR $\pi =\tfrac{22}{7}$ 

In the diagram PQRS is a rhombus$\left| PR \right|=10cm\text{ and }\left| QS \right|=24cm$. Calculate the perimeter of the rhombus.

In the figure shown, PQS is a straight line. What is the value of $\angle PRQ$

The angle of a quadrilateral are ${{(x+10)}^{o}},2{{y}^{o}},{{90}^{o}}\text{ and (100}-y{{)}^{o}}$. Find y in term of x

In the diagram, O is the centre of the circle and PQRS is a cyclic quadrilateral. Find the value of x   

if $\tan x=1$evaluate $\sin x+\cos x$ leaving your answer in surd form 

If $x\propto (45+\tfrac{1}{2}y)$ which of the following is true

Every staff in an office owns either a Mercedes or Toyota car. 20 owns Mercedes, 15 own Toyota and 5 own both. How many staff are there in the office?

An arc of a circle, radius 14cm is 18.33cm long Calculate correct to the nearest degree, the angle which the arc subtends at the centre of the circle Take$\pi=\tfrac{22}{7}$

XY is a chord of circle centre O and radius 7. The chord XY which is 8cm long subtends an angle of 120^o at the centre of the circle . Calculate perimeter of the minor segment[Take $\pi =\tfrac{22}{7}$]

If $p=\frac{1}{2}$ and $\frac{1}{p-1}=\frac{2}{p+x}$ , find the value of x