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how do i calcualte the length of an unknown side of a right angled triangle

To calculate the length of the unknown side you must know the lenght of two of the other sides of the right angled triangle. if we know this we can use pythagoros thereom. The equation for this is a^2+b^2=c^...
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Answered by Callum L. • Maths tutor
4552 Views

Solve the simultaneous equations 3x + 2y = 4 and 4x + 5y = 17

3x + 2y = 4 (equation 1) 4x + 5y = 17 (equation 2) Multiply equation 1 by 2.5, giving 7.5x + 5y = 10 (equation 1) 4x + 5y = 17 (equation 2) Subtract equation 2 from equation 1, giving 3.5x = -7 Therefore, x ...
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Answered by Isabella G. • Maths tutor
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Factorise the following expression: x^2-1

(x+1)(x-1)
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Answered by Nelson T. • Maths tutor
3598 Views

Could you please go through an example question where you have to solve quadratic simultaneous equations?

Of course - let's solve this question: Question: Solve the following quadratic simultaneous equations (1) 2x + y = 4 - x (2) y 2 + 4x = 12 Answer: a) Let us start by re-arranging the first equation: 2x + y =...
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Answered by Akhil S. • Maths tutor
3549 Views

What are cadences?

Within Western music, the chords composers use in their compositions help give different musical effects. Cadences are chords progressions, and each cadence creates a different musical sound. The most common...
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Answered by Dany B. • Music tutor
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