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A Level

Why can't you divide something by 0?

Let's go back to the definition of division: If we have a number o apples a and b persons to share them with, we can say that each person gets a/b apples. Example: 4 apples and 2 p...

AM
4235 Views

What is an acid and what is the difference between and strong and weak acid

An acid is a proton donor. The acid molecule may have one or more protons that it can lose depending on its structure, however generally the second proton is much less acidic (meaning that it is lost much...

LS
Answered by Lea S. Chemistry tutor
3203 Views

Expand and simplify (3 + 4*root5)(3 - 2*root5)

Using FOIL to expand the brackets we get

9 - 6root5 + 12root5 + 8*root5^2

Square rooting then squaring a number cancels out, so we are left with 8*5 or 40 for the last term.

...

CM
Answered by Callum M. Maths tutor
4392 Views

Name the two types of social influence and why they lead to conformity

Normative social influence- due to tthe wish to fit in to a group and be liked informative social influence- due to lack of understanding

CB
6336 Views

What are the different cases in german and what do they stand for?

There are 4 different cases in the German language: nominativ, akkusativ, dativ and genitiv. The most basic and the one every student starts learning is the nominativ, which basically corresponds with the...

VD
Answered by Valeria D. German tutor
2041 Views

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