Top answers

Calculate dy/dx for y=x(x−1)

y=x(x−1)y= x^2-xdy/dx= 2x-1
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Answered by Bella S. • Maths tutor
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What is an isotope?

Atoms of the same element with different numbers of neutrons
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Answered by Bella S. • Chemistry tutor
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What is active transport?

The movement of molecules against their concentration gradient (low concentration to high concentration), across a membrane using energy.
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Answered by Bella S. • Biology tutor
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I struggle with simultaneous equations, when you have a quadratic involved

Example solve the following, equation 1: x 2 +2y=9 equation 2: y=x+3In this example we have to use substitution, therefore we sub in equation 2 into 1 to get the following x 2 +2(x+3)=9 , now we must expand ...
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Answered by Benjamin F. • Maths tutor
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What is the square root of (2^6 + 6^2)

2^6 = 64 (2x2x2x2x2x2)6^2= 36 (6x6) 64+36= 100 Square root of 100= 10 (10x10=100)
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Answered by Bella S. • Maths tutor
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