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if -3 + -4 is -7, is -3 x -4 =-12 (also negative)

I would use the x-y graph to explain the multiplication of negative numbers I would also start with 4 x 3, then work my way towards negative numbers, e.g 4x2, 4x1 ......4x-1, 4x-2 Then I would go from 4 x -3...
SK
Answered by Syeda K. • Physics tutor
2339 Views

How do you calculate an empirical formula

An empirical formula is the simplest ratio of atoms of each element in a compound. You will be given either the mass of each element in the compound or the % mass. 1. Divide each mass (or % mass) by the atom...
TS
Answered by Tanisha S. • Chemistry tutor
11262 Views

What is the difference between masculine and feminine words?

In Spanish, all nouns (object words, like cat, house, London) are either masculine or feminine. We can usually tell if nouns are feminine because they end in 'a' and that they are masculine if they end in 'o...
NW
Answered by Naomi W. • Spanish tutor
10720 Views

How do I remember my adjectival endings?

The easiest method to remember adjectival endings is 'the panhandle'. On your table of adjectival endings, the endings on the top two rows create the shape of a pan with a handle. Let me demonstrate: Der rot...
IK
Answered by Iona K. • German tutor
2409 Views

How should you approach a piece of unseen poetry?

Being faced with a poem that you've never seen before can feel daunting; however, working through the poem methodically will enable you to effectively address the marking criteria, and respond to the questio...
AB
4317 Views