Top answers

Find the gradient of the line x^2 + 3x - 6 at the point (5,34)

Differentiate: 2x + 3.Substitute for x=5: 2(5) + 3Answer =13.
DD
2350 Views

Factorise fully X^2 - 6X + 8

Factorising means reducing an equation to a set of brackets, in the form (x+a)(x+b), where a and b are constants. To factorise this equation, we must find two numbers that add to make -6, and multiply to mak...
DD
Answered by Dan D. • Maths tutor
4087 Views

Technetium is an element commonly used in medicine. A technetium atom is represented as ^99 _43 Tc. Give the number of protons, neutrons and electrons in this atom of technetium.

99 43 Tc (how it should be represented in question) Number of protons = 43 Number of neutrons = 56 Number of electrons = 43 Technetium is given here in nuclear notation. This is where the top number represen...
DJ
Answered by Daniel J. • Chemistry tutor
4738 Views

Explain the stages of Piaget's theory of cognitive development (4 marks).

Piaget's theory of cognitive development has four main stages of mental development in children. It focuses on how children acquire knowledge throughout their childhood, in a stage-like fashion, as opposed t...
SW
Answered by Shona W. • Psychology tutor
3394 Views

What is the equation for respiration?

C6H12O6 + 6O2 --> 6CO2 + 6H20 + E
ML
Answered by Maggie L. • Biology tutor
2673 Views