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A,B,C and D are points on a circle. ABCD is a square of side 7 cm. Work out the total area of the shaded regions. Give your answer correct to the nearest whole number.

To work out the shaded area, we first need to calculate the area of the square and the area of the circle. The shaded area is equal to the area of the circle minus the area of the square. The area of the squ...
AS
Answered by Avnish S. • Maths tutor
18292 Views

Factorise: y = x^2 + 5x + 6

With quadratic equations, there are two ways in which to answer Firstly (and most simply), look for two numbers that multiply to make c and add up to make b in the equation y = ax 2 + bx + c , so in the exam...
AN
Answered by Adnan N. • Maths tutor
6263 Views

How do you expand brackets?

Let's have a look at a pair of brackets: (a+b)(c+d)To expand these brackets each value in one bracket must be multiplied by all values in the other bracket separately then added together. So we have: ac+ad+b...
PB
Answered by Phoebe B. • Maths tutor
4462 Views

How do I work out how a number is written in fraction form, if it is a reoccurring decimal?

If I have a reocurring decimal I use a special trick to work it out as a fraction. The trick is to try and cancel out the reocurring bit by multiplying by 10 several times and then using subtraction. E.g. 7....
JD
Answered by Jasmin D. • Maths tutor
3529 Views

Solve the equation x^2-9x+20

Multiples that equal 20: 1 and 20, 2 and 10, 4 and 5Which of these multiples add/subtract to give -9?= -4 and -5Therefore answer is:(x-4)(x-5)=0x= 4 or x= 5
MC
Answered by Megan C. • Maths tutor
4248 Views