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Define a surd and find the length of one side of a 50cm^2 square shape in surd form

i. A surd is an irrational number i.e. a non-whole number that can be represented as a square root, cube root etc. ii. If the area of the square shape is 50cm^2, then we know that the length multiplied by th...
AB
Answered by Andrew B. • Maths tutor
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I don’t think I’m smart enough for this course, should I drop it?

Maths A level is one of the hardest a levels there is, so it’s only natural that you’re going to be finding it tough. The jump from GCSE to A level is real, and if you haven’t done a further maths qualificat...
HS
Answered by Hope S. • Maths tutor
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How does a syanpse work?

An electrical impulse (action potential) travels along the axon of the pre-synaptic neuron. This causes the neuron to release chemical neurotransmitters which diffuse through the synaptic cleft and bind to t...
PD
Answered by Pavleen D. • Biology tutor
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When will I use this in my everyday life?

I know at first a lot of the formulae or techniques you use in maths may at first seem pointless, especially if you’re not planning on going into a scientific or mathematical field, but a lot of the things y...
HS
Answered by Hope S. • Maths tutor
3402 Views

Solve the simultaneous equations: (a) y - 2x = 6; (b) y+2x = 0.

rearrange equation (a) to be: y = 6 + 2x. Substitute this into equation (b) to get: (6 + 2x) + 2x = 0 rearrange this to get: 6 + 4x = 0. Simplify to get x = -(6/4). Get the value for x to be: x = -1.5. subst...
FM
Answered by Faizan M. • Maths tutor
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