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How do I use the bow-tie circle theorem?

To explain this question, I would first draw a digram of a circle. Then I woud add a chord and create triangles with vrtices at the circumference of the circle which all have the chord as a base. Next, I wou...
IT
Answered by Ivana T. • Maths tutor
8396 Views

Using the following quadratic equation, find x: x2 + 3x -4

x 2 +3x -4. (x + a) (x - b) x has no co-efficient so each is 1 x. next find two numbers with a product of -4 and a sum of +3. cannot be 2,2 as these numbers have a sum of -4, 0 or +4 depending on whether the...
JC
Answered by Jake C. • Maths tutor
4336 Views

Why do square roots have more than 1 solution?

As 3 2 is equivalent to (-3) 2 it follows that the square root of 9 must be + or -3.
MH
Answered by Masudul H. • Maths tutor
3529 Views

The area of this rectangle is 56 cm2 length = 3k+2 and width = 7 - Find the value of k

The first step in answering any maths question is to identify key words or key information. Key information is area, length and width. We have been told that the total area is 56cm2. We know that area is len...
AB
Answered by Ayat B. • Maths tutor
3739 Views

How do you simplify the square root of 18 without using a calculator?

Surds can be simplified if the number in the square root has a square number as a factor. It is also worth remembering that SQRT(ab) = SQRT(a) x SQRT(b). So if you combine these two points, lets look at how ...
RB
Answered by Richard B. • Maths tutor
10229 Views