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How would you work out the length of an hypotenuse, if the length of the opposite side is 3 cm and the length of the opposite side is 4 cm?

You would use Pythagoras theorem, which states, a^2 + b^2 = c^2. Where a is the opposite side to the angle, b is the side adjacent to the angle and c is the hypotenuse. So if a = 3 cm, and b = 4 cm, c^2 woul...
OA
Answered by Othniel A. • Maths tutor
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Solve the simultaneous equations: 2x+2y=12 x-y=8 You must show your working

The first thing we want to do is change the first equation so it's either all x's or all y's, we don't want a mixture. Now looking at the bottom equation, we can rearrange it by adding y to both sides. This ...
KA
Answered by Kasim A. • Maths tutor
5924 Views

When a toothbrush is charging, p.d. across the primary coil is 230 V, p.d. across the secondary coil is 7.2 V. The primary coil in the charging base has 575 turns of wire on its coil. Find the number of turns on the secondary coil inside the toothbrush.

This question is on transformers. This is clear because there is a primary and secondary coil and a different voltage between the 2 coils. Transformers induce a changing voltage in a coil. The known equation...
JT
Answered by Jayani T. • Physics tutor
6191 Views

How am I going to remember to get all of these different factors into essays in my exam?

Arguably more important than practicing writing full essays is practicing essay plans. If you can get into a good routine of producing concise plans which make sense to you and reflect all of the main points...
HR
Answered by Hannah R. • English tutor
2659 Views

Décrivez ton stage en entreprise.

Own answer of the candidate. Use multiple tenses, with checklist. Use different verbs and try not to repeat. Use technical language - les avocats, assister instead of aller à etc.
HH
Answered by Henry H. • French tutor
2939 Views