13 Answered Questions for the topic Rules


Do I get rid of the parenthesis?

In a function notation equation, for example:f(x) = x2 - 1; Find f(-6)When I am plugging in (-6), do I keep the parenthesis, resulting in my answer being 35?


Mystery behind silent letters?

I have doubts about words in the English language that have a silent letter. So I want to know how to understand whether a letter is silent or not.


What's wrong with "We hope you will find our Qualifications to be well-organized, concise, and most of all, to exceed your expectations."?

Why is the following sentence grammatically incorrect?> We hope you will find our Qualifications to be well-organized, concise, and most of all, to exceed your expectations.I've asked three... more


Where can I find a list of capitalisation rules for pure British writing?

Is there any quality English orthography book that contains rules for capitalising in pure British English? I’ve noticed that an American newspaper capitalises every word in the title of an article... more


Semi-colon or colon?

I'm writing a descriptive piece, and can't figure out whether this is grammatically correct, or whether I ought to place a semi-colon between "entry" and "crooked": "As I walked in using the... more
Rules Reading Ipa


Rules for pronunciation from spelling?

Is there a kind of list of rules that one could rely on for the pronunciation while reading?I'm quite sure there's some kind of rule that explain how to properly read english. It often happens when... more

Is using first person in academic/technical essays always bad?

For as long as I can remember, my teachers have taught me never to use first person in an essay. Yet, some of the examples we read in classes, or older writings we have to annotate, are written in... more


These Numbers belong together in a group: 16, 9, 49, 64

These numbers do not belong in a group: 40, 12, 77, 28 Which of these numbers belong in the group? 102, 36, 25, 50 what is the rule?


you (americans) have rules on word formation?

i learn english , and i dont understand HOW to learn the word formation!!!!


Write rule for following sequence: 3, 12, 1, 2, 2, 7, 4, 17

 I really need the answer to this!!!!!!! Please oh please :(
Rules Math Sequences


Write rule for following sequence: (3, 12) (1, 2) (2, 7) (4, 17)

I really don't understand this, and I need to answer this question. Please answer it for me and explain a bit how. Or give me a website i can find how.


Solving a question using cramer rule

3x - 2y + 5z = 6   9x - 8y + 1z = 46   -6x - 4y + 7z = 27

Differentiation Rules for Sinusoidal Functions

1. Find the slope of the function y=2cosxsin2x at x=π/2   2. Find the equation of the line that is tangent to y=x2sin(2x) at x=-π   3. Determine the second derivative for y=x2cosx

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