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In a right-angled triangle calculate the length of the hypotenuse when the side lengths at 5cm and 7cm. Leave your answer as a surd.

Using pythagoras’ theorem:a^2 + b^2 = c^2 hypotenuse = sqrt(5^2 + 7^2) = sqrt(25+49) = sqrt(74)
Answered by • Maths tutor
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Solve the equation x^2 + 10x + 24 = 0

So, we are dealing here with a quadratic equation as it is written in the form ax^2 + bx +c = 0 To tackle this we will firstly need to factorise the equation, we need to find two numbers that will multiply t...
AS
Answered by Aleema S. • Maths tutor
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Compare the issues involved in the use of embryo screening for cystic fibrosis and for polydactyly.

Screening embryos for conditions carries the risks of possible harm to the mother and harm to the embryo, including possible loss of the embryo. The result of the screening could also carry ethical implicati...
Answered by • Biology tutor
9984 Views

Factorise 8x^2 + 6x +1

8x 2 + 6x + 1. This is a quadratic equation as the highest power of x is to the power of 2.A quadratic is written in the form: ax 2 + bx + c. The coefficient of the x 2 term is greater than one. So you need ...
Answered by • Maths tutor
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How do I know when to put the accent in a word?

There are rules to know whether you have to put the accent or not. If a word is "Aguda", the tone will be stronger on the last syllable of the word. The vowel in this syllable will have an accent i...
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Answered by Lucía T. • Spanish tutor
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