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Craig weighs 74.2 kg, Connie weighs 67.8 kg, and Chloe weighs 69.4 kg. What is the range of their weight?

6.4 kg
PP
Answered by Pioli P. • Maths tutor
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What is the chain rule and how is it used?

The chain rule is used to find the derivative of an expression in the form h(f(x)) where you have a function in terms of a function of x for example: h(f(x)) = 2(3x+1)^3 where f(x) = 3x+1 In order to use the...
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Answered by Joseph B. • Maths tutor
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Explore gender in H.G. Well’s Ann Veronica.

Ann Veronica’s gender confines her to the private sphere and limits her opportunities. Her academic performance is better than her brother’s, but her father will not let her continue her studies at Imperial ...
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Answered by Marissa S. • English tutor
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What is meant by the redundancy of the genetic code?

The four letters (nucleotides) in our DNA code - ATGC - code for the thousands of different proteins that make up our metabolism and our human body. Proteins are made up of modular building blocks known as a...
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Answered by Stefan S. • Biology tutor
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How do you solve a quadratic equation e.g. x^2 - 5x - 14 = 0?

Quadratic equations take the form ax^2 + bx + c = 0. In the case above, a = 0, b = -5, c = -14. In order to solve it, we can factorise the equation into the form (x+c)(x+d) = 0. The answers are then x = -c, ...
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Answered by Manal P. • Maths tutor
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