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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....

PM
Answered by Preveina M. Maths tutor
3918 Views

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
2379 Views

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 th...

AA
Answered by Alexander A. Physics tutor
17899 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, b...

SW
Answered by Sarah W. Biology tutor
5934 Views

There are 10 boys and 20 girls in a class. The class has a test. The mean mark for all the class is 60. The mean mark for the girls is 54. Work out the mean mark for the boys.

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CA
Answered by Charlotte A. Maths tutor
4208 Views

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