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-3<n<1 n is an integer, write down all the possible values of n.

-2, -1, 0 M1 for 2 correct values, M2 for all 3 correct values
ZB
Answered by Zara B. • Maths tutor
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Work out the value 125^(-2/3) (A* Exam Q)

Whenever you have a negative power always take the reciprocal or flip the base value i.e 125. So now it is 1/125 raised to the power of 2/3. By flipping it over the fractional index is no longer negative. So...
PM
Answered by Preveina M. • Maths tutor
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What is ionic bonding?

It is a type of bonding where there is an electrostatic attraction between negative charged ions and positive charged ions. In this way atoms chemically combine, to produce a compound.
PM
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Suppose a student wants calculate the density of the two different objects, a metal cube and a small statue. Describe the methods the student could use to measure the density of the two objects.

First we should quickly remind ourselves of the equation for density:density= mass/ volumeTo calculate the density we need a method of measuring the mass of each object and another method for measuring the v...
AA
Answered by Alexander A. • Physics tutor
18699 Views

How can donepezil improve communication between nerve cells?

Donepezil is an inhibitor of the enzyme acetylcholinesterase. Acetylcholine is a neurotransmitter that diffuses across synapses, binds to the acetylcholine receptor and causes sodium ion channels to open. In...
SW
Answered by Sarah W. • Biology tutor
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