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The length of a plank of wood is 80cm to the nearest 1cm. What is the largest and smallest possible value for the actual length of the plank?

Bounds can be used when a value has been approximated. e.g. The length of a plank of wood is 80cm to the nearest 1cmThe lower bound is the smallest value that would round up to the estimated value. In this e...
LT
Answered by Lydia T. • Maths tutor
6850 Views

How should I structure a comparative essay?

One of the most important things to remember when writing a comparative essay seems very obvious but it is that you must Compare the texts very closely. The examiner is most interested in seeing your ability...
CB
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State the qualitative tests to distinguish between halide ions in solution.

To test for chloride ions, add silver nitrate and a white precipitate should form, then add dilute ammonia and it should re-dissolve. For bromide ions, add silver nitrate and a cream precipitate should form,...
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Answered by Ruggero B. • Chemistry tutor
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“Los móviles son el futuro de las herramientas educacionales” Escribe un articulo de opinión expresando tu punto de vista.

Vivimos en una época de tecnología. Gracias a la tecnología podemos contactar a cualquier persona simplemente por haciendo algunos clics por una pantalla. ¿Puedes pensar en un tiempo en el que no usas tu móv...
RA
Answered by Rhian A. • Spanish tutor
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What is the density of a material if 4 cubic metres (m3 ) of it has a mass of 2,200 kg?

Density can be described as the amount of mass per unit volume. It describes how closely together different particles are spaced. It varies significantly from solids to liquids to gases.In terms of calculati...
JM
Answered by Jamie M. • Physics tutor
6218 Views