If the mean of 4, y, 8 and 10 is 7. Find y

In a school of 150 students, 80 offers french while 60 offers Arabic and 20 offer neither. How many students offer both subjects?

From the diagram above, find the value of $\angle OTQ$

In the diagram above l₁ is parallel to l₂. Find the value of $\angle PMT$

The venn diagram show a class of 50 students with the games they play. How many students play only two games

Evaluate $\int{(\cos 4x+\sin 3x)dx}$

The pie chart above shows the distribution of subjects offered by students in SSSIII level. If 80 students enrolled in the class, what is the size of the angle of the sector in Economics?

The bar chart above shows the number of visitors received in a week. How many visitors were received on Friday, Tuesday and Sunday?

Calculate the perimeter of a sector of a circle of radius 12cm and angle 60^o

Given U = {x: x is a positive integer less than 15} and P = {x: x is even number from 1 to 14}. Find the compliment of P

Simplify $\frac{0.026\times 0.36}{0.69}$ leave your answer in standard form

Calculate the perimeter of a sector a circle of radius 9cm and angle 36^o

From the table above, find the median

Evaluate $\frac{0.8\times 0.43\times 0.031}{0.05\times 0.07\times 0.021}$ correct to four significant figures.

Evaluate $\int\limits_{0}^{\tfrac{\pi }{2}}{\sin xdx}$

The mean of 2– t, 4+t, 3 –2t, 2+t and t –1

If $y=2{{x}^{3}}+6{{x}^{2}}+6x+1$ find $\frac{dy}{dx}$

Simplify $1-\left( \frac{1}{7}\times 3\frac{1}{2} \right)\div \frac{3}{4}$ 

Find $\frac{dy}{dx}$ if $y=3{{x}^{3}}+2{{x}^{2}}+3x+1$