The UK’s best selection of online tutors

Chemistry Investigatory Projects Experiments. (Analysis, Tests,Titration). Please suggest. i am in class 11

Solve for x

Students often struggle with the amount of poetry on most GCSE courses. Tell me how you feel about poetry … and more specifically about studying the stuff.

Were i will write -um,-us , -ide etc. End of any chemical name

I didn't realise that he was a teacher. That's why I didn't write anything.

I'm not sure how answers are marked in A level Mathematics exams (if it counts, I'm sitting for the CIE board) but when I am doing practice questions based on a book, sometimes my answer may differ by a few hundredths or tenths (usually the third significant figure). When this happens, I usually assume that my calculation is correct and that the difference simply happens because of a choice I use to use or not use the correct form, not the one rounded off to 3 s.f. Would my marks be affected by these differences in an exam and if they do, when do I know whether I should use the rounded off figure or the exact form?

For instance in the work I've recently done, the question comes in 2 parts, the first is that I need to find the area of the sector and the second is the area of the chord of said sector. What I did was subtract the area of triangle from my previous answer but my answer was off by 2 hundredth. I did the calculation again using the correct form of the sector, not the one rounded to 3 s.f. and got the answer written in the answer booklet.

Would my answer be considered correct?

5/6:x::5/9:4/5

sin theta = (under root 3 + 1) divided by 2 times under root 2 cos theta = (under root 3 - 1) divided by 2 times under root 2 Find the value of theta. Please look at the shared image.

sinθ=(√3+1)÷2 cosθ=(√3-1)÷2 Find the value of

What makes medicine a difficult subject to be studied and taught?